UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'px5LRAu8enTgWuDA6LFCEoc8xNtYq4oxRPGYUN/gB64=' 
WHERE 
  key_id = '9f39f30bc29d782502f18dd38d13460b64f4d029af13a9c83ffb1f08a39075d0' 
  AND (
    token = 'px5LRAu8enTgWuDA6LFCEoc8xNtYq4oxRPGYUN/gB64=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )