curl --request POST \
  --url https://openplatform.gateapi.io/payment/open/institution/v1/pay/convert \
  --header 'Content-Type: application/json' \
  --header 'X-GatePay-Certificate-ClientId: <x-gatepay-certificate-clientid>' \
  --header 'X-GatePay-Nonce: <x-gatepay-nonce>' \
  --header 'X-GatePay-On-Behalf-Of: <x-gatepay-on-behalf-of>' \
  --header 'X-GatePay-Signature: <x-gatepay-signature>' \
  --header 'X-GatePay-Timestamp: <x-gatepay-timestamp>' \
  --data '
{
  "clientReqId": "181147",
  "sellCurrency": "GT",
  "buyCurrency": "USDT",
  "buyAmount": "1",
  "sellAmount": "0.04464002",
  "quoteId": "PAY-2a5743d8"
}
'

{
  "status": "SUCCESS",
  "code": "000000",
  "errorMessage": "",
  "data": {
    "order_id": "327196066546229248",
    "userId": 10002,
    "sellCurrency": "GT",
    "buyCurrency": "USDT",
    "sellAmount": "0.04464002",
    "buyAmount": "1",
    "status": 1,
    "rate": 22.40142365527614,
    "quoteId": "PAY-2a5743d8",
    "createTime": 1739971221273
  }
}