curl --request POST \
  --url https://openplatform.gateapi.io/withdraw/open/otc/api/bank/material/supplement \
  --header 'Content-Type: multipart/form-data' \
  --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>' \
  --form 'bankAccountId=<string>' \
  --form 'certificate=<string>' \
  --form 'passport=<string>' \
  --form 'shareHolders=<string>' \
  --form 'shareHoldingStructure=<string>' \
  --form certificate.items='@example-file' \
  --form passport.items='@example-file' \
  --form shareHolders.items='@example-file' \
  --form shareHoldingStructure.items='@example-file' \
  --form additional.items='@example-file'

{
  "code": "<string>",
  "status": "<string>",
  "errorMessage": "<string>",
  "data": true
}