Is there a way to get the "Latest Scheduled Update Attempt" (status and time) via the rest api?

We need to check the latest scheduled update attempt daily to meet our security obligations.

 

Periodically the BigIP box is unable to access the update site, and we would like to schedule a script to alert us when this is the case, so that we can attempt to resolve the issue as soon as possible and maintain our security obligation compliance.

 

We've been able to find an API endpoint which seems to show pending updates: https://bigipBox/mgmt/tm/asm/tasks/check-signatures

 

But, I've not been able to locate a branch that leads to the dsm negsig update history.

 

Does anyone know if this is available, and if so where to find it?