curl --request POST \
  --url https://psn-api.paystub.dev/admin/posts/{id}/media \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form collection=default \
  --form media='@example-file'

{
  "success": true,
  "data": {
    "media": {
      "id": 123,
      "name": "<string>",
      "file_name": "<string>",
      "mime_type": "<string>",
      "size": 123,
      "url": "<string>",
      "created_at": "2023-11-07T05:31:56Z"
    }
  },
  "message": "Media uploaded successfully"
}