{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354815",
    "entityType": "User",
    "nonce": "0xe334eaaf2d6cc0b4498c5131d47a57599ed2e21a5e19e840ed0c3382e17151b7",
    "signature": "0x36af87ed9508117793abf88e3a3ed97d9a8c3b64fa03dd86ec0e152a1169688a7756bd8aa19faad43725633653f596cbf019b656bc5302369cbd9c946f5a7bfa1b",
    "signer": "0x6d6397f74d01E51Fc0C654f5703B972e7CF26876",
    "userId": "237542932"
  }
}