// POST api/profile
 public HttpResponseMessage Post(UseExistingRequirementModel value)
 {
     try
     {
         using (var ctx = new Entities())
         {
             int userID = Authentication.GetLoggedUser().UserID;
             ctx.SelectRequirement(value.Cell, value.LeftTag, value.RightTag, userID, "Alteração de requisito para atender uma nova história");
             ctx.SaveChanges();
             return new HttpResponseMessage(HttpStatusCode.OK);
         }
     }
     catch
     {
         return new HttpResponseMessage(HttpStatusCode.InternalServerError);
     }
 }