Show Stories along with sub-tasks and sub-tasks assignee in one query

[Axel Mhar Valdepeña]

Is there any way I can get Stories along with sub-tasks and assignee of sub-tasks in one query
like:
-issues
  -fields
     -story1 
       -subtasks
          -subtask1
            -assignee
          -subtask2
            -assignee
          -subtask3
            -assignee
     -story2 
       -subtasks
          -subtask1
              -assignee
          -subtask2
              -assignee
          -subtask3
              -assignee

I used `/search?jql='Epic Link' = XXX-12334` and it will only return sub-tasks without assignee

I just want to avoid making another request just to get the sub-task assignee because if I have 51 stories to fetch I'll have 51 request to make just to get the sub-tasks with assignee