Crash of some donations and subs

[PedroCavaleiro]

I found two more exceptions one when resubscribing and yet another when receiving some donations, not all of them.

I'll update the tests and implement the fixes.

In the case of the resubscribing we have the following errors

• Missing type mapping
• Missing property mapping
• Missing subPlan mapping
• sub_plan_name might not be in the JSON
• Missing event_id mapping

In the case of the donation we have the following error

• from_user_id is not of correct type

I'll summarize the fixes in the PR