I am struggling to pass data to controller through ajax

Trying to hit "DeleteJobQuote" controller through Ajax but no luck. Please guide me if anyone has any idea about it. The code seems OK but not able to do so. I am writing this code to delete a particular record from database.

Controller

What I have tried:

<pre><pre> [HttpPost]
        public JsonResult DeleteJobQuote(int jobQuoteid)
        {
            using (var db = new KeysEntities())
            {
                var delJob = db.JobQuote.FirstOrDefault(x => x.Id == jobQuoteid);
                if (delJob != null)
                {
                    delJob.Status = "Delete";
                    db.SaveChanges();
                    return Json(new { success = true, Message = "JobQuote SuccessFully Deleted!" });
                }
                else
                {
                    return Json(new { success = false, Message = "Delete UnSuccessFul " });
                }

            }

        }

And JavaScript and Knockout


self.deleteJobQuote = function (jobQuote) {
        debugger;
         $.ajax({
         url: '/Companies/Manage/DeleteJobQuote',
            type: 'POST',
            dataType: 'json',
            data: JSON.Stringify({ jobQuoteid: 1028 }),
            //data: JSON.Stringify(jobQuote),
            contentType: 'application/json',
            success: function (result) {
                if (result.success) {
                     $('#jobQuoteDeleteModal').modal('show');
                  }
                else {
                    alert("You can not delete this record !!");
                     }
            }
        });
    };