NotificationPreferences(NotificationPreferences)

{
    "user_id": 0,
    "email_notifications": true,
    "low_balance_threshold": 10,
    "trial_expiry_reminder_days": 1,
    "plan_expiry_reminder_days": 7,
    "usage_alerts": true,
    "webhook_url": "string",
    "created_at": "2019-08-24T14:15:22Z",
    "updated_at": "2019-08-24T14:15:22Z"
}