Podcast only for external website subscribers

[Gasch]

Hello, I would like to recreate the same experience of podcasts accessible only to subscribers of my website that can be seen here: https://open.spotify.com/show/6GSnbFz5qzNuKnLmGzQbPc (Making Sense with Sam Harris - Subscriber Content).

On Spotify all episodes have a lock, trying to start playback I am shown the request "Get access", At that point I am asked to link my Spotify account with my account on the creator's site (samharris.org). If I have an active subscription then the podcasts are unlocked on Spotify otherwise I have to activate a subscription on samharris.org to do it.

I can't find any documentation or information on this topic.

Can you help me? Thank you