Reporter update via Javacript REST PUT

[Aslam]

I am trying to update reporter field using the Javascript and REST-API PUT call but doesnot work.

AJS.toInit(function() {
$.ajax({
url: "/rest/api/2/issue/APC-525",
type: 'PUT',
data: JSON.stringify({"reporter": { "name": "admin" }}),
contentType: 'application/json'
success: function(data) {
alert('Load was performed.');
}
});
});

can somehelp