how to get image from andriod web service to server in mvc

Question

I have created this code for getting an image from the Android side then this add-in folder then insert to database.

//Web Service 

[HttpPost]
public ActionResult UpdateUser(HttpPostedFileBase UploadLogo,string UserId)
      {
          if(UserId!=null && UploadLogo!=null)
          {
              #region
               var fileName = String.Empty;
               var file = string.Empty;
               if (UploadLogo != null)
              {
                 string strPath = Server.MapPath("/UserImage");
                  if (!System.IO.Directory.Exists(strPath))
                  { System.IO.Directory.CreateDirectory(strPath);}
                  //HttpPostedFileBase file1 = null;
                  UploadLogo = Request.Files[0];
                  fileName = Path.GetFileName(UploadLogo.FileName);
                  System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(strPath);
                  int count = dir.GetFiles().Length;
                  fileName = fileName.Substring(0, fileName.IndexOf('.')) + "_" + DateTime.Now.Millisecond + "-" + DateTime.Now.Second + "-" + DateTime.Now.Minute + "-" + DateTime.Now.Hour + "." + fileName.Substring(fileName.IndexOf('.') + 1);
                  var path = Path.Combine(strPath, fileName);
                  UploadLogo.SaveAs(path);
                  file = fileName;
              }
              #endregion
              ViewModel.User.User user = new BussinessLogic.User.User(new UserRepository(new CRMContext())).EditUser(new ViewModel.User.User()
                  {
                      UploadLogo=file,
                      id=Convert.ToInt32(UserId)
                  });
                  if(user.ErrorMessage.Equals("Updated"))
                  {
                      return Json(new {message = "Image SuccessFully Updated" }, JsonRequestBehavior.AllowGet);
                  }
                  else
                  {
                      return Json(new { message = "Image Not Updated" }, JsonRequestBehavior.AllowGet);
                  }
          }
          else
          {
              return Json(new { message = "Please Select Image" }, JsonRequestBehavior.AllowGet);
          }

      }

 from android, image is get in string format .how to get this image then how to convert this image in image format.

 

 

 

from Andriod side image string:

"

iVBORw0KGgoAAAANSUhEUgAAAHMAAADMCAIAAADPvQsRAAAAA3NCSVQFBgUzC42AAAAgAElEQVR4

nNV9y6olubbdyHW0LlOwL+xtqlHVOwl2o8CdA/4Cf4b/wv/hf3TzunFwJlSBJiyRuDHfkmLtnfW6

1yJrV6wIhR5D861HfHp9JQCYAICGSFP/zwABDCaQ/ARA2PIvadpTufDy44IZAEgKtyLZXiRYvVYi

XdTEBOJysWaQWlAqukqcqo60/HySrCJ8ohey15hAPBkNDiLJn2sEeSrimloMCcBc8KI0Ljte0ef0

mGueZ/35WM+vkZ2gdlnIqfzLoiRz8x9oBIBa5KYJhTWBJU+4EIK0jNEIk6WVRrByE/rIC5/7aB1b

KW/hAHGUxgDxqfN1hCjfx47UE/7bKIIArnQQpTft/id6UeJHA89CQulNw2tvhBKj9XZtbnrUFux2

emSDcufF8mOnrCNYVxJg5x1HhytSR5bZX9nzALjJIwZ4AmCezCoBAZg0nJlsvXmVghzWZn+D1paG

8YmVGBOAw+rlEx3gzyUzWRe8WZU+iJrcZEolkNEHXUBzdXO5v7TNLz6RPxGacqZ2/eNPd5JEfXqW

pNaAmVG7IFi/TqxQVdyBPI/9z3RHIcQkf6m9VnzJE0/k+JHRb6UxzrPOuc74AqvSI1k2++fjMWsz

JumddVS2xsz8jDbRoSKrUuvCOKkjYGr592IzBKa8NYU3DN9VoM6G+U6m2ROF5h5e0WzYUrUNVckk

cXGwBz7eDVdZ+1sVJj7dLrd2eXrs4UFez3c0HgrNrpI06Xf/G7RcERAqVmnLRv7Y8oBayE0CQWUf

40CAhQ6clFiN65JzuXmk0Fy+q+WjyK/FsLUjDc97sGKVsytZmYUL1PsAoNgt42G28LGNcAP5Q0lo

s3goOMjZIoIzqboHkd6L9I74DsrYiXsv7dCpBiDIzctKFEeNeLqi11YSwGr/Xpa9NWfJwtUOVSA2

1nNY2a+vRoaBgxsWTkqwe822ixc2P3Cn6U3CHAxKoNCsgHj0YlMTpNBdu+/KelcO/suq2MugSmu7

8fBcE4pXksUmVerL5SRbaE3Hqvf7z9INjagRNUITkjkI+9R2JlCt08XQQSZiQ2LNIzbsdG5QCXD9

XhaVICS9Or3CBZQksqZZzZ6KOq3MHq0qlX4kqdX1RHhwvZBun/odN2i96X4He0k8WTWK+L6AmWvS

pdTbApz3UwVF0gGUbOos/cl8Fnu9UaKZWn4egDXn87RmYJh3a63wXBltZX8UYlxZONn2G9tmt9hD

WeGSXFh4ESrbGDMb12sGpMZksYBEidaYJwLBB7It4C522mVqmX0uNOlHWMCF/WLrpXZIV5vlzC7J

ldV8QG0z+0oQg5XQGqeRqxEiYNVOhxIS7mccjpgUQVR9sJ3srZ/6LDjXM9hFyxdVurnfjAVBLn99

AFpYBdYAz8CE00jsYY0sHLIZ3mq2+Isy8Gu6gvIyzy3lqHL6CYf6+LsTEX6tPPJshovjFRJ2cflQ

dIu/25bOV/tazSM3/qhAfOBxDtUXF568riIBKF3X0g73PH2iF4TUQxZDC6bVfMv5V0FZjZ5DgxJL

FvZEtW9yb3FZWiTO5uDx6ZOX9UUPG63+60etAk83IAPHG79sKfPXHkkQopjJvsnOcS5kHtkCv0ER

 

"