{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4452",
    "entityType": "User",
    "nonce": "0x0960d968116cea619ca4c4025a8166112f0d136b034a2aea7683e2b92d7e3ff7",
    "signature": "0x04470f0d5750cfc90c1367ec9675280316d4fc26cc744f39f6263c56e1243c1319356ddd01ebe698fa4ef3a8e1905aeb0141135a977850630fa6cd9de44d716b1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}