{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ab17d196948594d6dc568b1fe5d0a3164e1e9447c3ae64785fd8a783f8ce4d1",
    "signature": "0x8e427bae72abb04f3195c9ef155e154717fd9562e7828dd2317535420961d0a2688ce55e707cd0152f5af162d694548812cf01c7492f60f6851f67ff8296befa1c",
    "signer": "0x7f1944267b0245a4F1996Fcda10640aaD82a9974",
    "userId": "493852419"
  }
}