curl --request POST \
  --url https://sandbox.finhub.cloud/api/v2.1/verifications/{verificationId}/documents \
  --header 'Content-Type: application/json' \
  --data '
{
  "documentType": "<string>",
  "documentCategory": "<string>",
  "fileName": "<string>",
  "filePath": "<string>",
  "mimeType": "<string>",
  "fileContent": "<string>",
  "fileSize": 123,
  "customerId": "<string>",
  "organizationId": "<string>",
  "description": "<string>",
  "verificationId": "<string>",
  "document": {
    "fileName": "<string>",
    "mimeType": "<string>",
    "fileContent": "<string>",
    "documentType": "<string>",
    "context": "<string>"
  }
}
'