請求報文格式

訂閱

{
    "method": "subscribe",
    "params": [
        "ticker@btc_usdt",
        "depth@btc_usdt"
    ],
    "id": 1              //回調ID
}

取消訂閱

{
    "method": "unsubscribe",
    "params": [
        "ticker@btc_usdt"
    ],
    "id": 2              //回調ID
}