public bool AddSubscription(string id, SubscriptionInstruction instr)
        {
            if (Subscriptions.ContainsKey(id))
            {
                return(false);
            }

            Subscriptions.Add(id, instr);

            return(true);
        }
        public void MakeSubscriptions()
        {
            foreach (var s in Subscriptions)
            {
                var d = new SubscriptionInstruction()
                {
                    EventId = s.Value.EventId
                };
                var j = Newtonsoft.Json.JsonConvert.SerializeObject(d);
                var b = System.Text.ASCIIEncoding.ASCII.GetBytes(j);

                tcpClient.GetStream().Write(b, 0, b.Length);
            }
        }