Thread contains my solution. | Unreal Source | Page 1

Okay I got it, for anyone interested:
First of all, about the shortest param, I've seen it being suggested in few places but if you're new or in need of much simpler output use the direct param. You can find all the params for Obj command in Obj.cpp StaticExec function and some more interesting ones in ReferenceChainSearch.h .EReferenceChainSearchMode enum.
As for the name= param, if you don't use the exact name the spawned object has and instead use class name it will list class references for example TSubclassOf variables, by exact name I mean the one you specified or auto generated name. The generated name would look something like BP_MyObject_C_0 ,BP_MyObject_C_1).
What's more interesting you don't need to add path to the object name is enough for the command to work.
In the end it looked like this:
obj refs name=BP_MyObject_C_1 direct

#Thread contains my solution.