币安期货 ACCOUNT_UPDATE 通过 websocket 问题进行流交易？

如何解决币安期货 ACCOUNT_UPDATE 通过 websocket 问题进行流交易？

我在执行以下代码时没有收到 Binance api 的响应，这里有什么我可能遗漏的吗？

import json
import websocket


socket='wss://fstream.binance.com/ws'


def on_open(ws):
    print("opened")
    subscribe_message = {
        "method": "SUBSCRIBE","params":
        [
         "ACCOUNT_UPDATE"
         ],"id": 1
         }

    ws.send(json.dumps(subscribe_message))

def on_message(ws,message):
    print("received a message")
    print(json.loads(message))     

def on_close(ws):
    print("closed connection")        

ws = websocket.WebSocketApp(socket,on_open=on_open,on_message=on_message,on_close=on_close)
ws.run_forever()