For Facebook/Google login
Yes. Use the same login account to access your subscription and Stars with a new phone number.
For phone login
Your subscription is listed under your previous phone number and will stay active if you want to use that account on the app.
If you’d like to switch, you’ll need to cancel your old subscription and re-subscribe using your new account.
In case you decide to switch, these are the instructions for canceling your subscription: https://escapex.uservoice.com/knowledgebase/articles/1189945-unsubscribe-on-selected-apps
And here’s how you can re-subscribe: https://escapex.uservoice.com/knowledgebase/articles/1189591-how-to-subscribe-on-selected-apps
Make sure to log in to the app with your new account before subscribing.