{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb9ad4502b2ca6a215ba73eeb17965f080f7cd09a7384628bad5052d9cf1e1839",
    "signature": "0xb060a969763e2c7d46932125cf0983f7d192632dd041ca3c6e5830ebe5dbc3d0427ac939d5bf67c5866574136f78d8658e14d7ae96c2f1223df8348803cea9791c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}