UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'V8WXzDsXimQQPy5gAPWpyNhgy2uD0lWJ6QhZGsNWDNM=' 
WHERE 
  key_id = '8e40a6aa5503bdecd8c1b685e8faff39a4f5fbe67908db09a05f060829abcfa0' 
  AND (
    token = 'V8WXzDsXimQQPy5gAPWpyNhgy2uD0lWJ6QhZGsNWDNM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )