Create message draft

curl --request POST \
  --url https://api.talktohumans.app/v1/drafts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "account_id": "42",
  "contact_id": "123",
  "draft_message": "Hi Jane, it was great learning about Acme."
}
'

{
  "data": {
    "draft": {
      "conversation_id": "<string>",
      "account": {
        "account_id": "<string>",
        "display_name": "<string>",
        "provider_account_id": "<string>",
        "owner_user_id": "<string>"
      },
      "draft_message": "<string>",
      "app_url": "<string>",
      "updated_at": "2023-11-07T05:31:56Z",
      "contact_id": "<string>"
    }
  }
}