avoid asynchronous issues when assign a property inside an observable

I am assigning the value of a property inside an observable:

this.sessionQuery.privateUser$.pipe(
  pluck('role')
).subscribe( userRole => {
  this.userRole = userRole; // userRole = true;
})

My property userRole now have the value true. The problem is that I need to use userRole property immediately with the value true into other methods but when other methods get executed, userRole value is still undefined. I am aware, this should be a problem of asynchronous but I would like to have the value true immediately to keep working with that value inside other methods.

I tried executing the rest of methods after the userRole assignation inside the subscribe and that works but for code organization reasons I need to place the rest of methods outside the subscription.

Maybe other solution is to force the code execution to wait until first subscription finishes