You can manage secrets of the Service Account Client using the command line utility.
Managing secrets of the Service Account Client includes:
Note: The Service Account Client must be enabled if you want to
manage its secrets. For information on enabling the Service Account Client, see
Enabling the Service Account Client From the Command Line.
To manage secrets of the Service Account Client using the graphical user interface, see Managing Secrets of the Service Account Client Using the Graphical User Interface.