[{"symbol":"BTC-200730-9000-C","priceChange":"-16.2038",//24-hour price change"priceChangePercent":"-0.0162",//24-hour percent price change"lastPrice":"1000",//Last trade price"lastQty":"1000",//Last trade amount"open":"1016.2038",//24-hour open price"high":"1016.2038",//24-hour high"low":"0",//24-hour low"volume":"5",//Trading volume(contracts)"amount":"1",//Trade amount(in quote asset)"bidPrice":"999.34",//The best buy price"askPrice":"1000.23",//The best sell price"openTime":1592317127349,//Time the first trade occurred within the last 24 hours"closeTime":1592380593516,//Time the last trade occurred within the last 24 hours "firstTradeId":1,//First trade ID"tradeCount":5,//Number of trades"strikePrice":"9000",//Strike price"exercisePrice":"3000.3356"//return estimated settlement price one hour before exercise, return index price at other times}]