余额更新事件描述#当下列情形发生时更新:账户发生充值或提取交易账户之间发生划转(例如 现货向杠杆账户划转)事件类型#USER_LIABILITY_CHANGE响应示例#Payload:{ "e": "balanceUpdate", //Event Type "E": 1573200697110, //Event Time "a": "ABC", //Asset "d": "100.00000000", //Balance Delta "T": 1573200697068 //Clear Time}Copy