Here's an example project that I played around with one day:
The idea is the TPL5111 would wake the Boron every 2 hours, or during an interrupt event (PIR).
In a perfect world, this "2-hour" could be increased to 24 hours....
But the Boron would simply ignore the 2-hour scheduled Wake-Up and go back to Shutdown via EN pin unless the Interrupt caused the Wake Event.
We now have Manual System Mode, so the Boron can do this quickly without starting up the Cellular Modem, etc. You probably wouldn't even notice that the Boron cycled during the 2-hour scheduled Wake-Up.
OR
The easiest way would be to publish the Event for each interrupt that triggers the TPL5111. Then you don't have to worry with keeping a counter on a separate IC for a Once-A-Day Publish when using the EN Pin Shutdown.
Your power budget might even allow for a Publish for Every Wake Event (2-hour schedule and Interrupts)
Example,
This SAFT LSH20 is rated at 68 Wh (19 Ah @ 3.6V Nominal)
From this post, I calculated 7,100 mWh (7.1 Wh) per Year, publishing every 2 hours with a Boron LTE & EN Pin Shutdown.
68 Wh / 7.1 Wh per year = 9 years of life on a 2-hour publish schedule 
Of course, your mileage may vary from my testing/location/environment/etc.