curl --request POST \
  --url https://api.example.com/api/v1/connected-accounts/checkpoint \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "checkpoint_token": "<string>",
  "code": "<string>"
}
'

{
  "success": true,
  "account": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "provider": "<string>",
    "provider_account_id": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "display_name": "<string>",
    "profile_url": "<string>",
    "is_default": false,
    "daily_connection_limit": 25,
    "daily_message_limit": 100,
    "warmup_days": 14,
    "connection_country": "<string>"
  }
}