curl --request POST \
  --url https://api.egp.scale.com/v5/files \
  --header 'Content-Type: multipart/form-data' \
  --header 'x-api-key: <api-key>' \
  --form file=@example-file.txt

{
  "id": "<string>",
  "object": "file",
  "size": 123,
  "md5_checksum": "<string>",
  "filename": "<string>",
  "mime_type": "<string>",
  "tags": {},
  "created_at": "2023-11-07T05:31:56Z",
  "created_by": {
    "id": "<string>",
    "object": "identity",
    "type": "user"
  }
}