UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MvexV38m7wPo0cXBsWxFttWce0lzswZMtfxVXcIe2uU=' 
WHERE 
  key_id = '38fd6b354f8eb5481517fe943a2f188938d31a88bff733223092a8597d735398' 
  AND (
    token = 'MvexV38m7wPo0cXBsWxFttWce0lzswZMtfxVXcIe2uU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )