UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6mr9XIoByG3SDNc1AZZDgjTyZMX4gYNXN1QrBwUPib0=' 
WHERE 
  key_id = 'ac568f1566ccb15dddeeded20615d975eaf5840fe5d38ebc86059305ff52fbf4' 
  AND (
    token = '6mr9XIoByG3SDNc1AZZDgjTyZMX4gYNXN1QrBwUPib0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )