standardnotes-app-web/app/assets/javascripts/hooks/manageSubscription.ts

import { SNApplication } from '@standardnotes/snjs';

export function openSubscriptionDashboard(application: SNApplication): void {
  application.getNewSubscriptionToken().then((token) => {
    if (!token) {
      return;
    }
    window.open(
      `${window._dashboard_url}?subscription_token=${token}`
    );
  });
}