UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6dxdllhuwm+3PKYpDTTjWcBxBLY9HSTWNZj1IlPRyLw=' 
WHERE 
  key_id = '646ad668d79c157eaa373d933d574f5e9fd2859949e7b4bed577689512d0741b' 
  AND (
    token = '6dxdllhuwm+3PKYpDTTjWcBxBLY9HSTWNZj1IlPRyLw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )