{
"id": "1545910660739",
"action": "SUBSCRIBE", // 或 UNSUBSCRIBE
"channel":"lw",
"tradeType":"UNIFIED"
}
{
"T": "lw.UNIFIED",
"P": 1729842192785164840,
"d": {
"eT": "MARGIN_CALL",
"r": "0.9378",
"a": "12456.32",
"iM": "58720.00",
"mM": "5284.80",
"aM": "1890.45",
"e": "63710.77",
"l": "51254.45",
"U": 1729842192780
}
}