Once you installed Pushnoty, und get your Device link shown, this can be used to send push notifications to your device, this is not synchronized with the Apple ID.
To send pushnotifications you can use the example Script:
curl -X POST https://api-pushnoty.tom07.de/send/YOUR-DEVICE-ID \
-H "Content-Type: application/json" \
-d '{"title":"NOTIFICATION-TITLE","body":"NOTIFICATION-TEXT","subtitle":"NOTIFICATION-SUBTITLE"}'
or you can make ur own HTTP POST to the Server.
json format
title
body
when the Notification is send successfully, the Server will send you a 'status_code‘ 200