getIconRaw example

return [
            PluginEvents::PLUGIN_LOADED_EVENT => [
                ['unserialize'],
            ],
        ];
    }

    public function unserialize(EntityLoadedEvent $event): void
    {
        /** @var PluginEntity $plugin */
        foreach ($event->getEntities() as $plugin) {
            if ($plugin->getIconRaw()) {
                $plugin->setIcon(base64_encode($plugin->getIconRaw()));
            }
        }
    }
}

    public function unserialize(EntityLoadedEvent $event): void
    {
        Feature::triggerDeprecationOrThrow(
            'v6.6.0.0',
            Feature::deprecatedMethodMessage(self::class, __METHOD__, 'v6.6.0.0', '\Shopware\Core\Framework\App\Flow\Action\AppFlowActionProvider')
        );

        /** @var AppFlowActionEntity $appFlowAction */
        foreach ($event->getEntities() as $appFlowAction) {
            $iconRaw = $appFlowAction->getIconRaw();

            if ($iconRaw !== null) {
                $appFlowAction->setIcon(base64_encode($iconRaw));
            }
        }
    }
}

public static function getSubscribedEvents(): array
    {
        return [
            'app.loaded' => 'unserialize',
        ];
    }

    public function unserialize(EntityLoadedEvent $event): void
    {
        /** @var AppEntity $app */
        foreach ($event->getEntities() as $app) {
            $iconRaw = $app->getIconRaw();

            if ($iconRaw !== null) {
                $app->setIcon(base64_encode($iconRaw));
            }
        }
    }
}

public static function getSubscribedEvents(): array
    {
        return [
            'app_flow_action.loaded' => 'unserialize',
        ];
    }

    public function unserialize(EntityLoadedEvent $event): void
    {
        /** @var AppFlowActionEntity $appFlowAction */
        foreach ($event->getEntities() as $appFlowAction) {
            $iconRaw = $appFlowAction->getIconRaw();

            if ($iconRaw !== null) {
                $appFlowAction->setIcon(base64_encode($iconRaw));
            }
        }
    }
}