{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0xe0743b626546e5002274f1fcc3025afc89b7963e5e41c69b66f42bce08f67ac0",
    "signature": "0x7a4bcaa21bb586fa3a378a8e9ff1dacf12e3c2f249ae5bf4078ff623a3f1f5eb39ef598e0afaffdee53ae8ffc5f614ec25694d917b2a7b7b42fae45f366651ff1c",
    "signer": "0xe4C0C440180A628EAF39D8c3fE4aEDBE2CE45aB4",
    "userId": "754624586"
  }
}