{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843059548",
    "entityType": "User",
    "nonce": "0x2301cd5f82ee2dca7bca1c2399e5d79d29f9802be1cf4873f49a7188c70e7909",
    "signature": "0x889647a6f63c113d84a9ed8f1104a9372851ebe469f19b1071c74e969c0185b367cc8de24bddd5f003dd56e119d20da49a9f9fde224b5b4f84f0af39878073101c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}