{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x72e5637c67145c0b3712a1c9b0c50b51add9a73d6ff2f7dbc0e33515084c2fef",
    "signature": "0xf8e140f980d6d3f41cfa09c2134a67154b689d46124247b56d497d1437a5cf545f3c8de0bf190a6fd5fa60801ff50330665095360c1557c91d4845e502f1201d1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}