Show image using ajax call

I created a service to get member information using entity framework.

then i used the service like this.

 [HttpGet]
        public JsonResult GetMemberImageData(string MemberId)
        {
            try
            {
  var memberPhoto = memberService.GetById(Convert.ToInt32(MemberId));

MemberViewModel myMember = new MemberViewModel();
myMember.MemberCode = Convert.ToBase64String( memberPhoto.MemberImg );

 List<MemberViewModel> List_ViewModel = new List<MemberViewModel>();

                List_ViewModel.Add(myMember);


  return Json(List_ViewModel.ToList(), JsonRequestBehavior.AllowGet);
            }
            catch (Exception ex)
            { return Json(ex.ToString(), JsonRequestBehavior.AllowGet); }

        }



in view:  .cshtml file::
function GetMemberPhotoSignature(member)
    {
        //alert(member);

         $.ajax({
            type: 'GET',
            contentType: "application/json; charset=utf-8",
            url: '@Url.Action("GetMemberImageData", "SpecialSavingCollection", "http")',
             data: { MemberId: member },
            dataType: 'json',
            async: true,
            success: function (data) {
                $('#AjaxLoader').hide();
                $.each(data, function (index, data) {
                    if (data != "Error") {
                        alert(data.MemberCode);
                        $("#target").attr("src", "data:image/gif;base64, " + data.MemberCode);
                            //$("#EmployeeID").val(data.EmployeeID);
                    }
                    else {
                       
                       // $("#EmployeeName").val('');
                    }
                });
            },
            error: function (request, status, error) {
                $('#AjaxLoader').hide();
             
               // $.alert.open("Employee Does Not Exist");
            }
        });




HTML::
<img id="target" src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
 AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
 9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot" />