This information is intended for District Zoom accounts, also known as a subaccount.
Several Marketplace apps from Zoom require a JWT token to complete the installation.
The question of 'what if I have more than one app that requires a JWT token, can that be provided'?
has been answered by Zoom:
You can have only 1 JWT marketplace app registered in your account.
However, you can generate multiple JWT tokens using the JWT keys, and the tokens operate independently of each other until expired or the credentials have been changed. Keep in mind, however, a JWT token will contain all the permissions, and there is no way to restrict it. The snippet is from our forums page which has been addressed by our developers: https://devforum.zoom.us/t/jwt-app-more-than-one-possible/33832/3