curl --request GET \
  --url https://openplatform.gateapi.io/payment/open/institution/api/open/v1/pay/order/fee/query \
  --header 'X-GatePay-Certificate-ClientId: <x-gatepay-certificate-clientid>' \
  --header 'X-GatePay-Nonce: <x-gatepay-nonce>' \
  --header 'X-GatePay-Signature: <x-gatepay-signature>' \
  --header 'X-GatePay-Timestamp: <x-gatepay-timestamp>'

{
  "code": "000000",
  "data": {
    "merchantTradeNo": "M8017074206",
    "orderCurrency": "USDC",
    "orderAmount": "110.33",
    "payAmount": "110.33",
    "totalFeeAmount": "5.11",
    "totalSettleAmount": "105.22",
    "payDetails": [
      {
        "transactionId": "35717875766394895",
        "payType": "GatePay",
        "payTime": "1762858225978",
        "payAmount": "0.11",
        "payCurrency": "USDC",
        "feeAmount": "0.11",
        "settleAmount": "0"
      }
    ]
  },
  "status": "SUCCESS",
  "errorMessage": ""
}