User Custom Metadata

My Blazor Wasm, AspNetCore Hosted supports only Social Login (Google). Once they login the app they can access the app.
For each user, I’ve created custom metadata in JSON Format {tenantId:1}. from the Auth0 Users Admin panel.
I want this metadata to be automatically passed in the access token as part of custom claims, when accessing the API. Can anyone please help how can I get this done?