Trigger user archive

curl --request POST \
  --url https://api.fluxer.app/v1/admin/archives/user \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "user_id": "<string>"
}
'

{
  "archive_id": "<string>",
  "subject_type": "user",
  "subject_id": "<string>",
  "requested_by": "<string>",
  "requested_at": "<string>",
  "started_at": "<string>",
  "completed_at": "<string>",
  "failed_at": "<string>",
  "file_size": "<string>",
  "progress_percent": 123,
  "progress_step": "<string>",
  "error_message": "<string>",
  "download_url_expires_at": "<string>",
  "expires_at": "<string>"
}