UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U6NB///YtcBSz6zOlu3BK7RUHpLiaST/hr0LVosjITo=' 
WHERE 
  key_id = '4cf9479d3ce8b190c88a6775f544c63b55d6deab5e7a66d47a2daa181f1eeb16' 
  AND (
    token = 'U6NB///YtcBSz6zOlu3BK7RUHpLiaST/hr0LVosjITo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )