curl --request GET \
  --url https://openplatform.gateapi.io/withdraw/open/otc/api/bank/country/list \
  --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": "<string>",
  "status": "<string>",
  "data": [
    {
      "countryId": 123,
      "countryName": "<string>",
      "countryCn": "<string>"
    }
  ]
}