UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'opcL3KZjha/iB7amS2crAdBpiqQraGKtwMMhO+AYZLc=' 
WHERE 
  key_id = '237094ecf782ce46dbe3aff83d88d806a8fe56a612e8ade29b834542f979477d' 
  AND (
    token = 'opcL3KZjha/iB7amS2crAdBpiqQraGKtwMMhO+AYZLc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )