I was wondering if you could take a look at the video which is the last http request call to make the call- the rest of the workflow works- but I'm trying to do assistant overides with system prompt with a {{context}} which is a variable value after the system prompt but it is still saying invalid json- essentially I am crreating a personal therapist assistant and I need to make them personalised which is why I am using {{context}}-thanks
p.s will probably change system prompt but that's the general bones of it