How can I use new interstitial futures and RequestContent in my Android app?

Unreal Engine 4.14 How can I use new interstitial futures in my Android app? Please show as step by step new future integration. Please explain ad mob setting for interstitial ads.

Please explain how to use RequestContent and StartInstall nodes. Can I use standard ftp hosting or Google disk for RequestContent? How can I prepare package for the installation and creating manifest file.

I trying to use new interstitial futures in UE 4.14.
But without success. Need Help!!!
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