{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123395122",
    "entityType": "User",
    "nonce": "0x7a6c662322851f3881f295238043f9ccecaa283ffc05c1ab6764ccb0b7e76ade",
    "signature": "0x51d38654a455c81ca4be85a8a4b4af0bc07bc5751b81285efaaadcd491832572056426dde013f84873e5a8e5a6fb695e50e7da2b6149ab7dc7dbe4b703f8ff041b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}