Can anyone explain how to make this node work?
What data shoul be connected to it and where can i get that data.
Do you have Google Play services set up in your project?
If not you can do this by using unreal's Online Subsystem.
You can also find a post about Goggle play set up for Unreal here
Using the Online Subsystem you should be able to get the access token which is needed by the Goggle Play Connect request.