BeeCloud.BCPay.updateSubscription C# (CSharp) Метод

        public static string updateSubscription(string id, string buyerID, string planID, string cardID, double? amount, string coupon, long? trialEnd, Dictionary<string, string> optional)
        {
            long timestamp = BCUtil.GetTimeStamp(DateTime.Now);

            JsonData data = new JsonData();
            data["app_id"] = BCCache.Instance.appId;

            data["app_sign"] = BCPrivateUtil.getAppSignature(BCCache.Instance.appId, BCCache.Instance.appSecret, timestamp.ToString());

            data["timestamp"] = timestamp;
            if (buyerID != null)
            {
                data["buyer_id"] = buyerID;
            }
            if (cardID != null)
            {
                data["card_id"] = cardID;
            }
            if (planID != null)
            {
                data["plan_id"] = planID;
            }
            if (coupon != null)
            {
                data["coupon"] = coupon;
            }
            if (amount.HasValue)
            {
                data["amount"] = amount.Value;
            }
            if (trialEnd.HasValue)
            {
                data["trial_end"] = trialEnd.Value;
            }

            if (optional != null && optional.Count > 0)
            {
                data["optional"] = new JsonData();
                foreach (string key in optional.Keys)
                {
                    data["optional"][key] = optional[key];
                }
            }

            string paraString = data.ToJson();

            string subscriptionURL = BCPrivateUtil.getHost() + BCConstants.version + BCConstants.bcsubscriptionURL + "/" + id;

            try
            {
                HttpWebResponse response = BCPrivateUtil.CreatePutHttpResponse(subscriptionURL, paraString, BCCache.Instance.networkTimeout);

                string respString = BCPrivateUtil.GetResponseString(response);

                JsonData responseData = JsonMapper.ToObject(respString);

                if (responseData["result_code"].ToString() == "0")
                {
                    return responseData["id"].ToString();
                }
                else
                {
                    var ex = new BCException(responseData["err_detail"].ToString());
                    throw ex;
                }
            }
            catch (Exception e)
            {
                var ex = new BCException(e.Message);
                throw ex;
            }
        }