{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75843",
    "entityType": "User",
    "nonce": "0x4f35ed582009745f0a40115fa7dadb60a612de67b418c7adad3e75c14bccac05",
    "signature": "0xae319839c6316114bbec826d910369489645bc9eb70ef2f3d09adfc55b586d00696f007e834135429df8ce7c472347f11803517ed90b6177c9f4349c2e60550f1b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}