{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbdf8258bff86d43da524ed5f85eaac173ea265f972598bdae5286a395ea31edb",
    "signature": "0x393e6e2a97aa897c866ba857d75ee78ab1352f94e345b47c847555af30d7766a50aa307d6eb2f037a2101c863e06de9ce80564d21ef180bacb32317a55d079ad1b",
    "signer": "0xeC35faD99f57B621720084Caff5a3D547F43855e",
    "userId": "523955400"
  }
}