public string UpdateMessage(Stream message)
        {
            try
            {
                MessageBox objInput = JSonHelper.JsonDeserialize<MessageBox>(new StreamReader(message).ReadToEnd());
                if (System.Configuration.ConfigurationManager.AppSettings[objInput.Pin] == null)
                {
                    return "Invalid PIN";
                }
                if (objInput.Pin != null && objInput.Pin.Length > 0)
                {
                    MessageInfo obj = new MessageInfo();
                    MessageBLL objbll = new MessageBLL();

                    obj.MessageId = objInput.MessageId;
                    obj.IsMessageRead = objInput.IsMessageRead;

                    obj.Pin = System.Configuration.ConfigurationManager.AppSettings[objInput.Pin].ToString();



                    int i = objbll.updatemessage(obj);

                    return "Updated successfully";

                }
                else
                {
                    return "Pin is a required field";
                }
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
        }