UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MQ01IzrcU7HOJfB6AycT8MhsCLj/VKXZC0MnUsbwu8k=' 
WHERE 
  key_id = 'a783be4dd16755853e61ac75fa02665c2e7c2ad2be6765bd0a634074b656e26f' 
  AND (
    token = 'MQ01IzrcU7HOJfB6AycT8MhsCLj/VKXZC0MnUsbwu8k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )