{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7085e16a7717ed822a6a81296762f663f158271aa4f4cf16337733b6c3062a16",
    "signature": "0x6bba9174d9aa10ae45cbee5f67b478ef48f767cddf8bf1791fd17d3ca1edb73d73cff6352af2c2c0882bcc223405c87ac2fb50258d313435922f2bf381cbbed21b",
    "signer": "0xB5EC92299b6f6D4D13A598E9ED72C49B48Ec70F5",
    "userId": "529321365"
  }
}