Cronjob command for purging old data command of privacy settings page?

Is there a cronjob command for doing the database cleanup, which we can start on the privacy settings page?

We cant use “Datenbank jetzt leeren”, because it seems our database is too huge and we get php timeouts, even when its set to 10 minutes.

Edit: It seems its also bugged. You can also start the cleanup, when you have saved the settings. Otherwise you’ll get following message: “Sie haben die Einstellungen für das Löschen von Daten geändert. Bitte erst speichern, bevor Sie einen Löschvorgang starten.”

Matomo-Version: 3.5.1
MySQL-Version: 5.5.56-MariaDB
PHP-Version: 7.0.30