Subscribe on methods execution c#

I`m looking for help in a next question. Can i subscribe on method execution with reflection in c#? What i have - method in class marked with attribute.

[MYATTRIBUTE]
private void Func()
{}

What i need - the way when i can find this method by reflection, and track when it will executed. Is it exist ? I`l try to find something, but nothing. Help please. Maybe i can pass smth in attribute to make it work ? I believe i can do it with Diagnostics, but still need some explanations.