curl --request POST \
  --url https://api.sovfixer.com/api/v1/sov \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "callback_url": "<string>",
  "document_type": "SOV",
  "client_ref": "<string>",
  "extra_data_*": "<string>",
  "output_formats": [
    "json"
  ],
  "update_callback_url": "<string>",
  "integrations": [
    "DTC"
  ],
  "workflow": "<string>"
}'

{
  "message": "OK",
  "id": "<string>"
}