UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+2wHLPmyXwIpwoQoGXbxbYyKRTueW8pTyFzBiH3GYEI=' 
WHERE 
  key_id = '81a0b2c392620c19e40b4523eb0c7e7a890cb9a6931fd1f249fd91ecfcb3fb3a' 
  AND (
    token = '+2wHLPmyXwIpwoQoGXbxbYyKRTueW8pTyFzBiH3GYEI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )