{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc042ba9f2d94a4821663dbb30474c33b4cbdd756bd89e6a6f2363bc9d861785",
    "signature": "0xd621c5fd7d7fb7d99d195a7128b70f1c798cd8c838710a437598e19b1d1be2e3294fe3385e70557195fe55891f12bb9bf0bf56d9738114184c771a67db9aa9021b",
    "signer": "0xcf853a25d9894A86C19c2a5A99FC3E20017c012A",
    "userId": "561301698"
  }
}