tasks audit database structure

Hello,

In order to get informations about my tasks (DATA …) in webmethods 7.1.3 without use services like pub.task.taskclient:getTask; i want to access to the database audt of tasks (in my case is dbo.T_TASK) and get this informations

The problem is that this informations is sotred in binaire in the column “callbackdata”

when i convert this binaire to string i get this informations but i don’t know how is structured to parse it

Can you help me to understand how this data is coded
Thank you so much