Need to Fetch Last Updated Records in ess_request_history table

I’m building a report using the ess_request_history table, where I need to fetch incremental records based on a timestamp filter. However, I couldn’t find a 'last update date' timestamp column to use as the filter criteria. The submission time isn’t suitable, as it doesn’t update as the process progresses. I need to retrieve the latest updated records from the Fusion BIP report on an hourly basis, using a timestamp-based approach.