Call Service node with variable in data

Does anyone know how to make a call service node accept a variable in its data? for instance something like

“entity_id”: “climate.downstairs”,
“temperature”: flow.temp

where flow.temp is the variable? I have done a ton of reading and cannot seem to find anything that works.


the info is just there in the sidebar right panel in the call service node

“temperature”: "{{flow.temp}}"

Yea I think I just now figured out what was happening, I had read that all over the place but it didn’t seem to work then I realized that I had both the LLAT and home assistant websocket contrib installed but node red was using the LLAT one for all nodes which doesn’t have that capability, thanks for responding though!.