UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VrFKVD8MhaeTyDTcxNJoLdE+AO4XFkFNHgKCHcLfJy0=' 
WHERE 
  key_id = '6539206b6d462f24afd58c6280cc35804dcde2765681f27aca05b64d7f075056' 
  AND (
    token = 'VrFKVD8MhaeTyDTcxNJoLdE+AO4XFkFNHgKCHcLfJy0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )