{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2e0c9f62f42e3c588ba0e0372103fd541457b61811a97dccb46e6e7d8286f327",
    "signature": "0xa0d5712f8571204cadb70a89ee6038ab4e5dc93e7d447f9971a5d1bf35ae8cae44994952af9cb8dcc16648c55a79c42c71059559bf0d42ac5ec9b718a4f64fa51b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}