Get first matching notification setting for a user

Examples

REQUEST
Content-Type: application/json
{
  "organization_id": 1,
  "notification_type": "seats_email"
}

RESPONSE
200 (OK)
{
  "id":1,
  "user_id": 1,
  "organization_id": 1,
  "notification_type": "seats_email",
  "resource_id": "",
  "enabled": 1
}