matrix-spec-proposals/api/server-server/examples/server_key.json

{
    "server_name": "example.org",
    "verify_keys": {
        "ed25519:abc123": {
            "key": "VGhpcyBzaG91bGQgYmUgYSByZWFsIGVkMjU1MTkgcGF5bG9hZA"
        }
    },
    "old_verify_keys": {
        "ed25519:0ldk3y": {
        "expired_ts": 1532645052628,
            "key": "VGhpcyBzaG91bGQgYmUgeW91ciBvbGQga2V5J3MgZWQyNTUxOSBwYXlsb2FkLg"
        }
    },
    "signatures": {
        "example.org": {
            "ed25519:auto2": "VGhpcyBzaG91bGQgYWN0dWFsbHkgYmUgYSBzaWduYXR1cmU"
        }
    },
    "valid_until_ts": 1652262000000
}