{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227069",
    "entityType": "User",
    "nonce": "0x728a9f0e8fdd82b2599ae2ff7a9e99fc77ff0a5fb8f1fd8ce418519234f32249",
    "signature": "0x3ca224490e2e056eb0b5fee83d6804a1d674303c38ae03dd0e06c20917fa6b906ced59493c1649da5bf5bb4a69c09aaea787b6391177881d63b650e778ba54541c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}