curl --request GET \
  --url https://api.sentvia.ai/v1/drafts \
  --header 'Authorization: Bearer <token>'

{
  "drafts": [
    {
      "id": "<string>",
      "inbox_id": "<string>",
      "subject": "<string>",
      "status": "<string>",
      "scheduled_at": "<string>"
    }
  ]
}