For devices running iOS 18 and iPadOS 18 or later, you can add input-push-token: 1 to your payload to start a Live Activity and receive a new push token. After you receive a new push token, you can use it to send updates to a Live Activity.
I read from https://developer.apple.com/documentation/ActivityKit/starting-and-updating-live-activities-with-activitykit-push-notifications#Start-new-Live-Activities-with-ActivityKit-push-notifications that I can start a live activity from CUSTOM SERVER by the start token I get from MyApp.Does that paragraph means my CUSTOM SERVER can receive a new token from aps? If not, how can update the live activity started by Push-Notification when MyApp doesn't alive? And what "input-push-token: 1 " can do, when I put it in the payloads?