WebsocKetV2Fund rateOn this pageFund rateRequest Format fund_rate@{symbol} example: fund_rate@btc_usdt rate: 60s Response Example Response{ "topic": "fund_rate", "event": "fund_rate@btc_usdt", "data": { "s": "btc_usdt", // Trading pair "r": "0.01", // Fund fee "t": 123124124 // timestamp }}