curl --request GET \
  --url https://api.sandbox.iron.xyz/api/documents/{id} \
  --header 'X-API-Key: <api-key>'

{
  "content_type": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "display_name": "<string>",
  "file_name": "<string>",
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "updated_at": "2023-11-07T05:31:56Z"
}