curl --request POST \
  --url https://api.hotstuff.trade/info \
  --header 'Content-Type: application/json' \
  --data '{
    "method": "userFees",
    "params": {
        "user": "0xxxx"
    }
}'

{
    "account": "0xxxx",
    "spot_volume_14d": "0",
    "spot_volume_30d": "0",
    "stable_spot_volume_14d": "0",
    "stable_spot_volume_30d": "0",
    "perp_volume_14d": "0",
    "perp_volume_30d": "0",
    "option_volume_14d": "0",
    "option_volume_30d": "0",
    "total_volume_threshold": 1000000,
    "perp_maker_fee_rate": -0.00002,
    "perp_taker_fee_rate": 0.00025,
    "spot_maker_fee_rate": 0,
    "spot_taker_fee_rate": 0.0003,
    "stable_spot_maker_fee_rate": -0.0001,
    "stable_spot_taker_fee_rate": 0.0001,
    "option_maker_fee_rate": 0.0003,
    "option_taker_fee_rate": 0.00035
}