UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PONqmxBd2EpmjEZOxB7Js4FrZ40wrIauWBW2hiKJCvc=' 
WHERE 
  key_id = 'fa6a097f86cea395971b2faec5f3546df891d81433a77403b2b168e60daeeeef' 
  AND (
    token = 'PONqmxBd2EpmjEZOxB7Js4FrZ40wrIauWBW2hiKJCvc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )