curl --request GET \
  --url https://extraction-api.nanonets.com/api/v2/files/{file_id} \
  --header 'Authorization: Bearer <token>'

{
  "file_id": "<string>",
  "filename": "<string>",
  "content_type": "<string>",
  "file_size": 123,
  "signed_url": "<string>",
  "created_at": "2023-11-07T05:31:56Z"
}