{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xe56f2569c2094ea5826426766734ae4178e8c7581fe647c95b052e8c481fe84e",
    "signature": "0x4bcc2782307ea4990b24cf040acc9104df94a6799525b74195c198e37241c0e9222ad688b6c2ceb7f7acc740b67f8cf51e481726feacfa7b45a5eac0818afebb1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}