币种Heco 合约地址如下：
    HT:
    0x5545153CCFcA01fbd7Dd11C0b23ba694D9509A6F
    USDT:
    0xa71EdC38d189767582C38A3145b5873052c3e47a
    HUSD:
    0x0298c2b32eaE4da002a15f36fdf7615BEa3DA047
    HBTC:
    0x66a79D23E58475D2738179Ca52cd0b41d73f0BEa