Pass the Parameter / Variable in Http Request Body

Here it is. I would like to replace legalEntity value.

{
“orderFrieghtAnalysis”:[
/{
“salesId”:“”,
“deliveryMode”:“UPS-Ex-P”,
“deliveryModeName”:“UPS Express Plus”,
“overrideCode”:“”,
“shippingAmt”:103.4,
“suggestedAmt”:103.4,
“shippingCost”:93.15,
“levelWeight”:2.58,
“custFreightAcct”:“”,
“overrideCodeDesc”:“”,
“levelName”:“01”,
“residentialChargeProposed”:0,
“outOfAreaChargeProposed”:0
}
/
],
“orderHeaderId”:“”,
“legalEntity”:“ZUKL”,
“currencyCode”:“USD”,
“companyName”:“AUTOMATION ZUKL TEST ACCOUNT”,
“aeId”:“e8e751a9-08d8-eb11-bacb-000d3a17efe1”,
“aeName”:“User 18756487351”,
“aMPersonalNumber”:“010900”,
“billingAddressId”:“1e46994a-6e59-ef11-bfe2-6045bda803e7”,
“accountId”:“02397cff-6859-ef11-a316-000d3a98c397”,
“accountBusinessUnit”:“800”,
“accountCostCenter”:“120099”,
“actionType”:188190002,
“customerAccount”:“2000003042”,
“customerRef”:“”,
“department”:“1200”,
“invoiceAmount”:“144.40”,
“isGamOrder”:true,
“justificationComments”:“”,
“justificationReason”:1,
“leasingAccountNumber”:“”,
“modifiedSource”:“OMS”,
“orderDate”:“”,
“orderLimit”:0,
“orderType”:188190000,
“paymentMode”:“OA”,
“purchOrderFormNum”:“vk_test”,
“expeditedFulfillment”:false,
“includedForCommission”:false,
“includeStandingEmailRecipients”:true,
“quoteExpirationDate”:“2024-09-30”,
“taxExemptionType”:“”,
“additionalEmails”:“”,
“soBuyer”:“”,
“futureReleaseDate”:“2024-09-22”,
“additionalShippingConfirmationEmails”:“”,
“giftReceipt”:false,
“manualMgrReviewFlag”:false,
“managerReview”:false,
“holdFulfillment”:false,
“quoteName”:“”,
“waitForCustomer”:false,
“onyxId”:“200004784”,
“isInterCompanySalesOrder”:false,
“salesId”:“”,
“brokerFeesType”:“Fixed”,
“markupTransheaders”:null,
“opportunityId”:“”,
“recId”:0,
“language”:“en-GB”,
“quoteStatus”:“”,
“zonOverrideFinancialDimension”:“No”,
“zonSuppressInvoice”:“No”,
“confirmationStatus”:“Yes”,
“billCompleted”:“No”,
“salesType”:“Journal”,
“salesOrigin”:“Assisted”,
“orderSource”:“CRM”,
“cIMSCustomerId”:“0”,
“cIMSProjectCode”:“”,
“cIMSProjectId”:“0”,
“cIMSProjectName”:“”,
“lastFourDigitCreditCardNumber”:“”,
“costTo”:“”,
“lOBCostcenter”:“”,
“lOBDepartment”:“”,
“miscData1”:“”,
“miscData2”:“”,
“miscData3”:“”,
“miscData4”:“”,
“miscData5”:“”,
“projectId”:“”,
“projectType”:“”,
“sendQuote”:null,
“loggedInUserId”:“693BC25D-6389-EE11-8179-6045BDD735D9”,
“isLimitedModified”:false,
“isUpdated”:false,
“deleteOrderLevelsIds”:[

],
“deleteOrderLinesIds”:[

],
“deleteCommentsIds”:[

],
“deleteOrderLineCommentsIds”:[

],
“deleteCustomizationNoteIds”:[

],
“deleteAttachDocumentIds”:[

],
“deleteOrderAssistsIds”:[

],
“deleteOrderFrieghtAnalysisIds”:[

],
“deleteOrderLineRecIds”:[

],
“deleteAssistRecIds”:[

],
“deleteCommentRecIds”:[

],
“orderLevels”:[
{
“orderLevelId”:“”,
“modifiedSource”:“OMS”,
“deliveryContactName”:“ZUKL CONTACT1”,
“deliveryContactPhone”:“+44 1214960497”,
“customerFreightAccount”:“”,
“overrideFreightAmount”:0,
“overrideFreightCharge”:false,
“shippingCost”:“93.15”,
“shippingMethodCode”:“UPS-Ex-P”,
“shippingMethodName”:“UPS Express Plus”,
“shippingRate”:“103.40”,
“shippingAmt”:“103.40”,
“isOverNight”:true,
deliveryEmail":"zuklc1@Test.com”,
“deliveryAddressLine”:“AUTOMATION ZUKL TEST ACCOUNT”,
“deliveryAddressStreet”:“CRAWLEY BUSINESS QUARTER MANOR ROYAL”,
“deliveryAddressCity”:“CRAWLEY”,
“deliveryAddressState”:“FN”,
“deliveryAddressCountry”:“GBR”,
“deliveryAddressZipCode”:“RH10 9AD”,
“shippingAddress”:“e91ed579-1d5e-ef11-bfe3-000d3a4ef5bd”,
“soLevel”:“01”,
“orderHeaderOrderLevelId”:“”,
“termsOfDeliveryCode”:“DDP”,
“termsOfDeliveryDescription”:“Delivered Duty Paid”,
“contactId”:“00e0c223-6959-ef11-a316-000d3a98c397”,
“holdToComplete”:false,
“orderLines”:[
{
“isLineModifiable”:true,
“orderLineComments”:[

           ],
           "orderLineId":"",
           "recId":0,
           "stopped":"No",
           "modifiedSource":"OMS",
           "itemId":"301134506",
           "productNumber":"301134506NEW",
           "dellQuoteId":"",
           "ceDellQuoteId":"",
           "dellQuoteExpiryDate":"1900-01-01",
           "primaryVendorId":"",
           "dellQuoteCost":0,
           "minPrice":39.38,
           "osrAmount":0,
           "itemName":"DELL Latitude 5440 Intel Core i5 i5-1345U Laptop",
           "name":"DELL Latitude 5440 Intel Core i5 i5-1345U Laptop",
           "configuration":"NEW",
           "customizationNoteCode":"SPDI",
           "customizationNoteReqd":0,
           "customizationNote":[
              {
                 "id":"",
                 "field":"MfrPartNumber",
                 "label":"Hold Number",
                 "fieldType":"string",
                 "controlType":"text",
                 "value":"",
                 "saleId":"",
                 "orderLineId":"",
                 "recId":0
        //
              },
              {
                 "id":"",
                 "field":"SpecialInstructions",
                 "label":"Special Instructions",
                 "fieldType":"string",
                 "controlType":"text",
                 "value":"",
                 "saleId":"",
                 "orderLineId":"",
                 "recId":0
        //
              },
              {
                 "id":"",
                 "field":"Description",
                 "label":"Case ID",
                 "fieldType":"string",
                 "controlType":"text",
                 "value":"",
                 "saleId":"",
                 "orderLineId":"",
                 "recId":0
        //
              }
           ],
           "mfrPartNumber":"5JC7R",
           "sku":"301134506-NEW",
           "manufacturerName":"DELL",
           "currencyCode":"USD",
           "weight":2.58,
           "wareHouse":"UKDSHIP",
           "site":"1",
           "recycleFeePrice":0,
           "recycleFeeReqd":false,
           "recycleFeeCode":"",
           "vpaPrice":41,
           "salesQty":1,
           "listPrice":44.62,
           "isWebStandard":0,
           "spa":"",
           "contractFee":"0",
           "contractID":"",
           "contractNumber":"",
           "internalContractName":"",
           "formalContractName":"",
           "salesPrice":41,
           "salesCost":39.38,
           "lineNumber":1,
           "appleDepLinkedItemId":0,
           "orderHeaderId":"",
           "orderLevelId":"",
           "displaySequence":1,
           "lineId":"",
           "landedCost":39.38,
           "landedCostPercent":0,
           "netLandedCost":"39.38",
           "webPrice":41,
           "needByDateQualifier":"0",
           "needByDate":null,
           "isFinishedGood":false,
           "isTSCService":false,
           "statusCode":0,
           "stateCode":0,
           "extCustProductNumber":"",
           "extPOLineNumber":"",
           "reviewQueue":"",
           "isInsideDelivery":0,
           "isLiftGateDelivery":0,
           "isProofRequireSignatureAdult":0,
           "isCustomerStandard":0,
           "wYType":0,
           "linkedWYLineNumber":0,
           "wYLineRefId":"",
           "deleteNoteRecIds":[
              
           ],
           "deleteLineCommentRecIds":[
              
           ],
           "bHConfigItem":"",
           "bAHItemId":"",
           "isBAHConfig":false,
           "isWsServiceItem":false,
           "lineStatus":"F1",
           "margin":"3.95"
        }
     ]
  }

]
}