public static void handleTxItem(int blockindex, DateTime blockTime, MyJson.JsonNode_Object txItem)
        {
            var vout_tx = txItem["vout"].AsList();

            if (vout_tx.Count > 0)
            {
                foreach (MyJson.JsonNode_Object voutitem in vout_tx)
                {
                    var assetID = voutitem["asset"].AsString();
                    if (!Mongo.isDataExist(Collection, "id", assetID))
                    {
                        lock (lockObj)
                        {
                            if (!Mongo.isDataExist(Collection, "id", assetID))
                            {
                                var resasset = Rpc.getassetstate(Config.NeoCliJsonRPCUrl, assetID.Replace("0x", "")).Result;
                                if (resasset != null)
                                {
                                    Collection.InsertOne(BsonDocument.Parse(resasset.ToString()));
                                }
                            }
                        }
                    }
                }
            }
        }
        public static void handle(MyJson.JsonNode_Object notification)
        {
            string assetId = notification["contract"].AsString();

            //var findBsonNEP5AssetBson = BsonDocument.Parse("{assetid:'" + assetId + "'}");
            //var queryNEP5AssetBson = Collection.Find(findBsonNEP5AssetBson).ToList();

            if (!Mongo.isDataExist(Collection, "assetid", assetId))
            {
                lock (lockObj)
                {
                    if (!Mongo.isDataExist(Collection, "assetid", assetId))
                    {
                        NEP5.Asset asset = new NEP5.Asset(Config.NeoCliJsonRPCUrl, assetId);
                        Collection.InsertOne(asset);
                    }
                }
            }
        }