余额变更

subscribe

{
  "method": "SUBSCRIBE/UNSUBSCRIBE",
  "params": [
    "{balance}@{listenKey}",
  ],
  "id": "{id}"
}

Response

{
  "topic": "balance", 
  "event": "balance@123456", 
  "data": {
    "coin":"usdt",
    "underlyingType":1, //  1:币本位，2:U本位
    "walletBalance":"123", // 钱包余额
    "openOrderMarginFrozen":"123", // 订单冻结
    "isolatedMargin":"213",  // 逐仓保证金
    "crossedMargin":"0" //全仓保证金
  }  
}