diff --git a/examples/rest-unified-margin-private-cursor.ts b/examples/rest-unified-margin-private-cursor.ts
new file mode 100644
index 0000000..5860424
--- /dev/null
+++ b/examples/rest-unified-margin-private-cursor.ts
@@ -0,0 +1,44 @@
+import { UnifiedMarginClient } from '../src/index';
+
+// or
+// import { UnifiedMarginClient } from 'bybit-api';
+
+const key = process.env.API_KEY_COM;
+const secret = process.env.API_SECRET_COM;
+
+const client = new UnifiedMarginClient({
+  key,
+  secret,
+  strict_param_validation: true,
+});
+
+(async () => {
+  try {
+    // page 1
+    const historicOrders1 = await client.getHistoricOrders({
+      category: 'linear',
+      limit: 1,
+      // cursor,
+    });
+    console.log('page 1:', JSON.stringify(historicOrders1, null, 2));
+
+    // page 2
+    const historicOrders2 = await client.getHistoricOrders({
+      category: 'linear',
+      limit: 1,
+      cursor: historicOrders1.result.nextPageCursor,
+    });
+    console.log('page 2:', JSON.stringify(historicOrders2, null, 2));
+
+    const historicOrdersBoth = await client.getHistoricOrders({
+      category: 'linear',
+      limit: 2,
+    });
+    console.log(
+      'both to compare:',
+      JSON.stringify(historicOrdersBoth, null, 2)
+    );
+  } catch (e) {
+    console.error('request failed: ', e);
+  }
+})();
diff --git a/examples/rest-unified-margin-public-cursor.ts b/examples/rest-unified-margin-public-cursor.ts
new file mode 100644
index 0000000..8d8aab6
--- /dev/null
+++ b/examples/rest-unified-margin-public-cursor.ts
@@ -0,0 +1,36 @@
+import { UnifiedMarginClient } from '../src/index';
+
+// or
+// import { UnifiedMarginClient } from 'bybit-api';
+
+const client = new UnifiedMarginClient({
+  strict_param_validation: true,
+});
+
+(async () => {
+  try {
+    // page 1
+    const historicOrders1 = await client.getInstrumentInfo({
+      category: 'linear',
+      limit: '2',
+    });
+    console.log('page 1:', JSON.stringify(historicOrders1, null, 2));
+
+    // page 2
+    const historicOrders2 = await client.getInstrumentInfo({
+      category: 'linear',
+      limit: '2',
+      cursor: historicOrders1.result.nextPageCursor,
+    });
+    console.log('page 2:', JSON.stringify(historicOrders2, null, 2));
+
+    // page 1 & 2 in one request (for comparison)
+    const historicOrdersBoth = await client.getInstrumentInfo({
+      category: 'linear',
+      limit: '4',
+    });
+    console.log('both pages', JSON.stringify(historicOrdersBoth, null, 2));
+  } catch (e) {
+    console.error('request failed: ', e);
+  }
+})();
diff --git a/package.json b/package.json
index 418972e..9204cda 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bybit-api",
-  "version": "3.2.0",
+  "version": "3.3.0",
   "description": "Complete & robust node.js SDK for Bybit's REST APIs and WebSockets, with TypeScript & integration tests.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/types/response/index.ts b/src/types/response/index.ts
index 23d9753..390e4da 100644
--- a/src/types/response/index.ts
+++ b/src/types/response/index.ts
@@ -1,3 +1,4 @@
 export * from './shared';
 export * from './spot';
 export * from './usdt-perp';
+export * from './unified-margin';
diff --git a/src/types/response/unified-margin.ts b/src/types/response/unified-margin.ts
new file mode 100644
index 0000000..468d3be
--- /dev/null
+++ b/src/types/response/unified-margin.ts
@@ -0,0 +1,70 @@
+export interface UMPaginatedResult<List = any> {
+  nextPageCursor: string;
+  category: string;
+  list: List[];
+}
+
+export interface UMLeverageFilter {
+  minLeverage: string;
+  maxLeverage: string;
+  leverageStep: string;
+}
+
+export interface UMPriceFilter {
+  minPrice: string;
+  maxPrice: string;
+  tickSize: string;
+}
+
+export interface UMLotSizeFilter {
+  maxTradingQty: string;
+  minTradingQty: string;
+  qtyStep: string;
+}
+
+export interface UMInstrumentInfo {
+  symbol: string;
+  contractType: string;
+  status: string;
+  baseCoin: string;
+  quoteCoin: string;
+  launchTime: string;
+  deliveryTime: string;
+  deliveryFeeRate: string;
+  priceScale: string;
+  leverageFilter: UMLeverageFilter;
+  priceFilter: UMPriceFilter;
+  lotSizeFilter: UMLotSizeFilter;
+}
+
+export interface UMHistoricOrder {
+  symbol: string;
+  orderType: string;
+  orderLinkId: string;
+  orderId: string;
+  stopOrderType: string;
+  orderStatus: string;
+  takeProfit: string;
+  cumExecValue: string;
+  blockTradeId: string;
+  rejectReason: string;
+  price: string;
+  createdTime: number;
+  tpTriggerBy: string;
+  timeInForce: string;
+  basePrice: string;
+  leavesValue: string;
+  updatedTime: number;
+  side: string;
+  triggerPrice: string;
+  cumExecFee: string;
+  slTriggerBy: string;
+  leavesQty: string;
+  closeOnTrigger: boolean;
+  cumExecQty: string;
+  reduceOnly: boolean;
+  qty: string;
+  stopLoss: string;
+  triggerBy: string;
+  orderIM: string;
+}
diff --git a/src/unified-margin-client.ts b/src/unified-margin-client.ts
index 6ce1201..730bcc7 100644
--- a/src/unified-margin-client.ts
+++ b/src/unified-margin-client.ts
@@ -26,6 +26,9 @@ import {
   InternalTransferRequest,
   UMExchangeCoinsRequest,
   UMBorrowHistoryRequest,
+  UMPaginatedResult,
+  UMHistoricOrder,
+  UMInstrumentInfo,
 } from './types';
 import { REST_CLIENT_TYPE_ENUM } from './util';
 import BaseRestClient from './util/BaseRestClient';
@@ -78,7 +81,7 @@ export class UnifiedMarginClient extends BaseRestClient {
   /** Get trading rules per symbol/contract, incl price/amount/value/leverage filters */
   getInstrumentInfo(
     params: UMInstrumentInfoRequest
-  ): Promise<APIResponseV3<any>> {
+  ): Promise<APIResponseV3<UMPaginatedResult<UMInstrumentInfo>>> {
     return this.get('/derivatives/v3/public/instruments-info', params);
   }
 
@@ -167,7 +170,7 @@ export class UnifiedMarginClient extends BaseRestClient {
   /** Query order history. As order creation/cancellation is asynchronous, the data returned from the interface may be delayed. To access order information in real-time, call getActiveOrders() */
   getHistoricOrders(
     params: UMHistoricOrdersRequest
-  ): Promise<APIResponseV3<any>> {
+  ): Promise<APIResponseV3<UMPaginatedResult<UMHistoricOrder>>> {
     return this.getPrivate('/unified/v3/private/order/list', params);
   }
 
diff --git a/src/util/BaseRestClient.ts b/src/util/BaseRestClient.ts
index 248fe33..a83d687 100644
--- a/src/util/BaseRestClient.ts
+++ b/src/util/BaseRestClient.ts
@@ -79,6 +79,8 @@ export default abstract class BaseRestClient {
       enable_time_sync: false,
       /** How often to sync time drift with bybit servers (if time sync is enabled) */
       sync_interval_ms: 3600000,
+      /** Request parameter values are now URI encoded by default during signing. Set to false to override this behaviour. */
+      encodeSerialisedValues: true,
       ...restOptions,
     };
 
@@ -337,6 +339,7 @@ export default abstract class BaseRestClient {
     const recvWindow =
       res.originalParams.recv_window || this.options.recv_window || 5000;
     const strictParamValidation = this.options.strict_param_validation;
+    const encodeSerialisedValues = this.options.encodeSerialisedValues;
 
     // In case the parent function needs it (e.g. USDC uses a header)
     res.recvWindow = recvWindow;
@@ -349,7 +352,8 @@ export default abstract class BaseRestClient {
           ? serializeParams(
               res.originalParams,
               strictParamValidation,
-              sortProperties
+              sortProperties,
+              encodeSerialisedValues
             )
           : JSON.stringify(res.originalParams);
 
@@ -378,7 +382,8 @@ export default abstract class BaseRestClient {
       res.serializedParams = serializeParams(
         res.originalParams,
         strictParamValidation,
-        sortProperties
+        sortProperties,
+        encodeSerialisedValues
       );
       res.sign = await signMessage(res.serializedParams, this.secret);
       res.paramsWithSign = {
diff --git a/src/util/requestUtils.ts b/src/util/requestUtils.ts
index bf5ca66..7c60b01 100644
--- a/src/util/requestUtils.ts
+++ b/src/util/requestUtils.ts
@@ -20,6 +20,13 @@ export interface RestClientOptions {
   /** Default: false. If true, we'll throw errors if any params are undefined */
   strict_param_validation?: boolean;
 
+  /**
+   * Default: true.
+   * If true, request parameters will be URI encoded during the signing process.
+   * New behaviour introduced in v3.2.1 to fix rare parameter-driven sign errors with unified margin cursors containing "%".
+   */
+  encodeSerialisedValues?: boolean;
+
   /**
    * Optionally override API protocol + domain
    * e.g baseUrl: 'https://api.bytick.com'
@@ -35,12 +42,14 @@ export interface RestClientOptions {
  * @param params the object to serialise
  * @param strict_validation throw if any properties are undefined
  * @param sortProperties sort properties alphabetically before building a query string
+ * @param encodeSerialisedValues URL encode value before serialising
  * @returns the params object as a serialised string key1=value1&key2=value2&etc
  */
 export function serializeParams(
   params: object = {},
   strict_validation = false,
-  sortProperties = true
+  sortProperties = true,
+  encodeSerialisedValues = true
 ): string {
   const properties = sortProperties
     ? Object.keys(params).sort()
@@ -48,7 +57,10 @@ export function serializeParams(
 
   return properties
     .map((key) => {
-      const value = params[key];
+      const value = encodeSerialisedValues
+        ? encodeURI(params[key])
+        : params[key];
+
       if (strict_validation === true && typeof value === 'undefined') {
         throw new Error(
           'Failed to sign API request due to undefined parameter'
diff --git a/test/inverse-futures/private.write.test.ts b/test/inverse-futures/private.write.test.ts
index b327aaa..7573ca5 100644
--- a/test/inverse-futures/private.write.test.ts
+++ b/test/inverse-futures/private.write.test.ts
@@ -128,11 +128,15 @@ describe('Private Inverse-Futures REST API POST Endpoints', () => {
     expect(
       await api.replaceConditionalOrder({
         symbol,
+        order_link_id: 'fakeOrderId',
         p_r_price: '50000',
         p_r_qty: 1,
       })
     ).toMatchObject({
       ret_code: API_ERROR_CODE.ORDER_NOT_FOUND_OR_TOO_LATE,
+      ret_msg: expect.stringMatching(
+        /orderID or orderLinkID invalid|order not exists/gim
+      ),
     });
   });
 
diff --git a/test/unified-margin/private.read.test.ts b/test/unified-margin/private.read.test.ts
index 9deeced..be2ef35 100644
--- a/test/unified-margin/private.read.test.ts
+++ b/test/unified-margin/private.read.test.ts
@@ -31,6 +31,15 @@ describe('Private Unified Margin REST API GET Endpoints', () => {
     });
   });
 
+  it('getHistoricOrders() with cursor', async () => {
+    const cursor =
+      'fb56c285-02ac-424e-a6b1-d10413b65fab%3A1668178953132%2Cfb56c285-02ac-424e-a6b1-d10413b65fab%3A1668178953132';
+    expect(await api.getHistoricOrders({ category, cursor })).toMatchObject({
+      retCode: API_ERROR_CODE.ACCOUNT_NOT_UNIFIED,
+      retMsg: expect.stringMatching(/not.*unified margin/gim),
+    });
+  });
+
   it('getPositions()', async () => {
     expect(await api.getPositions({ category })).toMatchObject({
       retCode: API_ERROR_CODE.ACCOUNT_NOT_UNIFIED,