{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77481",
    "entityType": "User",
    "nonce": "0xa3b6504c189771b986630bb2622f5abb6d75c8d3c74ee6e93a5e18f6039b0080",
    "signature": "0x491aaa078d63c8692d8fbb3a13c0c5b095e91179d07075b0d4e14c887bc8ee7c745171830f226e86bbeed241bd663b2f06e698a373594a788a9983a69d7f1f951b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}