UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MMH0ktfwfGlLcpdktsF8wGNXQOb/x5Y6Dbhqqx31G78=' 
WHERE 
  key_id = '0708eee3ac61bb51c8223f502982e651faaf2382b4e5955910f61d777e441e89' 
  AND (
    token = 'MMH0ktfwfGlLcpdktsF8wGNXQOb/x5Y6Dbhqqx31G78=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )