Huh? JSON? Did you insert executable preamble bytes and chmod the file to execute or something? Where is this file? Can you post a link?

My work issued MacBook is incapable of running unsigned binaries enforced by the MDM kext, and I do all sorts of development all day long. Occasionally I have to resign a precompiled dylib if it was compiled on a coworkers machines, but that’s it. I have never seen anything like you’re describing.