curl --request POST \
  --url https://api.example.com/backups/upload \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-API-Key: <api-key>' \
  --form file='@example-file'

{
  "success": true,
  "message": "<string>",
  "tables_restored": 123,
  "records_restored": 123
}