I´m trying to use a local/data/ key. Here is my config.yaml:

---
server:
  httpListenAddr: ":3592"

storage:
  driver: "disk"
  disk:
    directory: /policies
    watchForChanges: true

auxData:
  jwt:
    keySets:
      - id: ks1
        local:
          data: eW91ci0yNTYtYml0LXNlY3JldA==