Remember, we discussed a simple hack on how we can change the database table directly. Do you want to track the guy who did the changes in these tables directly? Like CDHDR and CDPOS which holds the table entry changes, there is a similar table to track SE16N changes also.
Refer these tables to track the changes:
SE16N_CD_KEY – Table Display: Change Documents – Header
SE16N_CD_DATA – Table Display: Change Documents – Data