Hello, I would like to write my own authentication service and use my service to login into UGS Authentication behalf of my users. I'm using external token authentication, my server has user's external id token. Normally with this API call stated in documents, I can https://services.docs.unity.com/pla...hentication/operation/SignInWithExternalToken However when I look at the rate limits, it's not possible to use this method in the production environment. Could someone suggest a better solution to this situation ? Thank you !