{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "418876483",
    "entityType": "User",
    "nonce": "0x297ce35503e344b9001c2cc2ee15e2ba93b2f1852dcf45453a160ab3dd09a087",
    "signature": "0x67f163b03f13dd61afe7cb2869d8cc7f50b32208d52f7b79b55126ca23f283252972fc73e824ff8af885f6855567e71b919bc9c41cf89cef3c639d8646663edc1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}