UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Pa3O4g0KQI2od96sy4xvdpdkFlorE4a9kmQLUzqzVh4=' 
WHERE 
  key_id = '4051f456a1d82d2bccfa20d82b6e49d834a925aee80a4cf5036cf28ecb450830' 
  AND (
    token = 'Pa3O4g0KQI2od96sy4xvdpdkFlorE4a9kmQLUzqzVh4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )