UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xXke8OvlvO1VgwXOuQowoiPVzX6gK37AsmKhROoqZ0Y=' 
WHERE 
  key_id = '51e5a505093d5e99c6e620d367f4f4f7204e596da3bb5960e72cc838a11e3e93' 
  AND (
    token = 'xXke8OvlvO1VgwXOuQowoiPVzX6gK37AsmKhROoqZ0Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )