UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r8fFjRPUiDJnWW8BS84At5Sdkrl6K4mAF0IO7tq+dwA=' 
WHERE 
  key_id = '15e8c9c8ac83da38f195cf7a570022fa707b5e1c57b8ef4fc6bc0998bca8c396' 
  AND (
    token = 'r8fFjRPUiDJnWW8BS84At5Sdkrl6K4mAF0IO7tq+dwA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )