{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xbf5fdf9bb886b8b56d3e04164c3b292d38182272c32724410bf49540f5fa7216",
    "signature": "0x0bfe691ce2d2f967c8a2faaeb2425c2d2db0daf077630cb2e1a4c4ef7b116e5213ae5a83114fabb7bc51383d55d56ceddf97f6ddf48ec188a780e7c933a1b7e71c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}