curl --request POST \
  --url https://openplatform.gateapi.io/pay-subscription/open/institution/v1/order/deduct \
  --header 'Content-Type: application/json' \
  --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>' \
  --data '
{
  "merchantDeductNo": "DEDUCT_20260420_001",
  "amount": 10.5,
  "currency": "USDT"
}
'

{
  "code": "0",
  "message": "",
  "data": {
    "deductOrderNo": "70778338049917033",
    "merchantDeductNo": "DEDUCT_20260420_001",
    "status": "SUCCESS",
    "amount": "10.50000000",
    "currency": "USDT",
    "totalDeducted": "10.50000000",
    "remainingAmount": "89.50000000",
    "deductTime": 1773989575000
  },
  "success": true
}