[ 'ContractOrder' => '成交记录', ], 'fields' => [ 'contract_id' => '合约ID', 'symbol' => 'Symbol', 'lever_rate' => '杠杆倍数', 'order_type' => '交易类型', 'buy_id' => '买单ID', 'sell_id' => '卖单ID', 'buy_user_id' => '买家用户ID', 'sell_user_id' => '卖家用户ID', 'unit_price' => '成交价格', 'trade_amount' => '交易数量', 'trade_buy_fee' => '买单手续费', 'trade_sell_fee' => '卖单手续费', 'ts' => '时间戳', ], 'options' => [ ], ];