UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DHy86OkJlEkO0qHsZ5M43GEEvzK9qm/RoqNbKK8Yows=' 
WHERE 
  key_id = '50913f4e2ba5d07e7741d82f320480fc32d02377051ed00c17a36554349df584' 
  AND (
    token = 'DHy86OkJlEkO0qHsZ5M43GEEvzK9qm/RoqNbKK8Yows=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )