{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4a9e4d1230e3113d4c230e5b7c4febdb7ff7ed33fcefa59a1fc76fd3b01266dc",
    "signature": "0x07c223e92180bd0cedd1eb6de46bc4de8cf3fbbe78d7d1bfa830b427794c875d5e8a58f8fd3122b2b834e0dfb7519c9f4a9cf93a08c33b2307ba3e7477a565281b",
    "signer": "0xd05588C766feCBeD6dd4429a94F2ed6080276b91",
    "userId": "340701249"
  }
}