{
    "version": "x.y.z",
    "publicKey": "VGhyZWUgc3F1YXJlcz8gWW91IGNhbuKAmXQgc3BhcmUgdGhyZWUgc3F1YXJlcz8=",  // base64 
    "accessCondition": {
        "version": "x.y.z",
        "condition": { ... }
    },
    "authorization": {
        "evidence": "WW91IGtub3csIEkgYWx3YXlzIHdhbnRlZCB0byBwcmV0ZW5kIEkgd2FzIGFuIGFyY2hpdGVjdC4=",  // base64 
    }   
}