{
  "type": "<string>",
  "sid": 123,
  "msg": {
    "trade_id": "<string>",
    "order_id": "<string>",
    "client_order_id": "<string>",
    "market_ticker": "<string>",
    "is_taker": true,
    "side": "<string>",
    "ts_ms": 123,
    "price": "<string>",
    "count": "<string>",
    "fee_cost": "<string>",
    "post_position": "<string>",
    "subaccount": 123
  }
}