{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828403040",
    "entityType": "User",
    "nonce": "0x135a92a95daed9682acfcdaf79255668d79c91efa40db3bed4e6661a104e7e97",
    "signature": "0x0552948b0b7de4cd3361d81ded47c489011bab6c86c74a98a358cdaf9e25db042fd2027d11acf695536afd5fcad84504a3a091a71f2a5f0f779cb670b9dd65ab1c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}