Allow a user to sign up and register their device. There are two different methods to sign up a user and activate their device.
1. Auto activation: This method automatically registers and activates the user's device without any extra input from the user.
2. User activation: This method involves the user in the device registration and activation process. They are required to enter an activation token to activate their device.
* Third party can be any mechanism you decide to use to deliver the activation token to your user. For example, email, push notification, SMS