If you want to get a record inside a Deepser model or entity in your workflow process, all you need is the action “Lookup Record” inside your workflow.
After opening your workflow process inside the “Flow” module, to add the action “Lookup Record” inside the FLOW section:

Then the following screen will open:

In our example, we want to get the record of the user that has created the ticket.
We choose the model “DeepAdmin – User” to get the entity of the user and then we set the expression or condition to filter the query.
In our case, we want to get the username equal to the Requester user of the ticket, from the trigger event.