UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r0a41oQyt9lMcYJvQUv19uVK2gg1urWG0SoXWjHYc6Y=' 
WHERE 
  key_id = '81940f5d13fc8046f519bc7d91b507b8db181698ea2595bb20be9788dac18a90' 
  AND (
    token = 'r0a41oQyt9lMcYJvQUv19uVK2gg1urWG0SoXWjHYc6Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )