Create new record from web resource(HTML) with lookup(incident) using JavaScript

I want to create new record(entity-name: mb_myEntity) with following fields using JavaScript in html form.

I am unable to created records along with lookup field. Please suggest if i'm doing some mistake, here is the code for creating record

var data =

{

   "mb_name": document.getElementById("name").value,

   "mb_case@odata.bind": "incident(FB4F88B0-XXXX-XX)"

}

parent.Xrm.WebApi.createRecord("mb_myEntity",data).then(

function success(result){

alert(result.id);

},

function (error){}

);

Note: without setting up case lookup, this code is creating new record.