{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x7249ba5c93f186cb9ea72f10b8b6a94f6da11fa142cdcfb7c501c7fc9aea1ced",
    "signature": "0xc82976bde91b8e82af8f4592d9f5ce54168871b50d09b8d9cdc6554a3decf9cf31e46ec177ccd413df200b2e6608715df041289abda4f5d5cfd68a3a409884bf1b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}