How Do I Store Bolt Entity Prefabs Outside the App?

I'm developing a multiplayer app for the Oculus Quest with Unity ver. 2019.4.4f1. I have a large number of mp3 files which I want to instantiate as Bolt Entity prefabs at various points during gameplay. Unfortunately, if I have too many of these mp3's in the app itself, it crashes the app in my Quest. So I need to store them outside the app, maybe in a cloud service like AWS, and get them into the app to be instantiated as needed. Can anyone provide any guidance? Thanks!

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