/* GET /market/history/trade?symbol=ethusdt&size=1 */
{
  "status": "ok",
  "ch": "market.ethusdt.trade.detail",
  "ts": 1502448925216,
  "data": [
    {
      "id": 31459998,
      "ts": 1502448920106,
      "data": [
        {
          "id": 17592256642623,
          "amount": 0.04,
          "price": 1997,
          "direction": "buy",
          "ts": 1502448920106
        }
      ]
    }
  ]
}