查询用户持仓列表

{
  "code": 0,
  "msg": "",
  "data": [
    {
      "pairId": 0,
      "posId": "",
      "sell": 0,
      "leverage": 0,
      "amount1": 0.0,
      "realizedPL": 0.0,
      "openAvgPrice": 0.0,
      "availAmount": 0.0,
      "state": 0,
      "createTime": "",
      "createTimeLong": 0
    }
  ]
}