SEPM database and Stored Procedure

Hello,

I trace SQL requests launched by the SEPM console (12.1 RU4 MP1b) and I'm blocked with all the "exec sp_execute XXX, @Parameters" entries..

Can someone help me to understand how are built this requests ?

For example, "exec sp_execute 53,N'12346546546453652'" : What is the SQL request or which Store procedure is behind the 53 value ?

Thanks in advance for you help.

Regards