Web Services - Daisy Chain Request without Java

Remember I’m using this for a root path:
$.Entity.UsrIdLst[*]
The mappings I’m doing in 1st call are:
userID = $Usr.UsrId

Notice the nested Usr.UsrId ?

It sounds like I need to use this but it doesn’t work. How can I do a nested call in the $response keyword?

"UsrId": "$response.Usr.UsrId$"