Opportunity Closed as abandoned with parameter pass to LoseOpportunity entity in MS CRM

function OpportunityCloseAsAbandoned()

{

    var clientURL = Xrm.Page.context.getClientUrl();

    var Guid = Xrm.Page.data.entity.getId();

  Guid = id.replace("{","").replace("}","");

                var req = new XMLHttpRequest();

req.open("POST", encodeURI(clientURL+"/api/data/v8.2/LoseOpportunity"), true);

req.setRequestHeader("Accept", "application/json");

req.setRequestHeader("Content-Type", "application/json; charset=utf-8");

req.setRequestHeader("OData-MaxVersion", "4.0");

req.setRequestHeader("OData-Version", "4.0");

req.onreadystatechange = function () {

if (this.readyState == 4)  /* complete */

{

req.onreadystatechange = null;

if (this.status == 204) {

Xrm.Page.data.refresh();

//Action Executed Successfully

console.log("Abandoned Successfully");

} else {

var error = JSON.parse(this.response).error;

console.log(error.message);

}

}

};

//Parameters

var body = JSON.stringify({

"Status" : 619080020,

"OpportunityClose" : {

"subject" : "Abandoned Opportunity",

"description" : "Close By Abandoned",

"opportunityid@odata.bind" : clientURL+ "/api/data/v8.2/opportunities("+Guid+")" }});

req.send(body); 

}