Allow 3rd party to SSO via JWT -> access token

Hello,

we use Auth0 Universal Login for our web app. We now have a 3rd party partner which wants to access our web app via SSO, meaning they generate a JWT with data, we validate this JWT and then provide some sort of access token to get them directly access to our web app.

Is this somehow possible with Auth0? Please see attached image for clarification of the flow.

Thanks
Tobias