UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z+jyckMbjmNjP8n21TZYubqfXV8FarRfxwLX4cEuC88=' 
WHERE 
  key_id = 'fadc1a8af4d9c65a61582a02a5969b781a98eac761996e9602dfb790436a6824' 
  AND (
    token = 'Z+jyckMbjmNjP8n21TZYubqfXV8FarRfxwLX4cEuC88=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )