{
  "discovery_version": 1,
  "signed_knock": {
    "protocol_version": 1,
    "endpoint": "/api/presence",
    "algorithm": "Ed25519",
    "encoding": "base64url-unpadded",
    "verbs": ["presence.here"],
    "origin": "https://caseytunturi.com",
    "clock_skew_seconds": 300,
    "nonce_min_bytes": 16
  }
}