As Jeff said, you can use Google -> IFTTT -> Blynk route. This is actually what I use at the moment, so that I can speak to my Google Pixel 2 when I need to open my garage door. Basically, you can go to IFTTT to create an ‘applet’ that connects your Google home with a ‘web request’. The web request is in the form of:
where your_blynk_id is the blynk id.
The only quirk is that setting virtual pin 1 (v1) to 1 will keep the relay engaged, so I always have to go to the Blynk app afterwards to release the button. Otherwise the relay will keep engaged and won’t allow you to trigger a click. This can be easily fixed by adding something in the firmware, I just haven’t got around time to do that.