{"code":"0","msg":"success","data":[{"instId":"GRAM-USDT","baseCurrency":"GRAM","quoteCurrency":"USDT","contractValue":"1","listTime":"1782289800000","expireTime":"4928108305922","maxLeverage":"50","assetClass":"Crypto","minSize":"1","lotSize":"1","tickSize":"0.001","instType":"SWAP","contractType":"linear","maxLimitSize":"30300","maxMarketSize":"15150","state":"live","thresholdX":"0.04","thresholdY":"0.1","thresholdZ":"0.15","settleCurrency":"USDT","offTime":"","apiPermission":"full"}]}