Keycloak 19.0.2 Log file in JSON format

Is there a way to have Keycloak write the log file in json format? I am trying avoid having the console output redirecting to a file if possible. I have try adding quarkus.log.file.json=true but I get a warning saying that is not a valid configuration parameter, and will ignore it.

Due to my environment setup, we cannot send our logs directly to ELK, and we have to send it to another broker first before ELK picks it up, and the logs need to be in json format to for this broker to pick it up.