{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "423602960",
    "entityType": "User",
    "nonce": "0x5acfaa2530bb30d615170f3563f18b46a36c1fc25c8a8151e25c17c84d490900",
    "signature": "0xbd6c72383fe2bc65381bc50483a43ecb9b84649ae1abcbf8c4842bde92673bcc288108c49503da4ada03b0813c4de864b8893c18b4d85398e6038673334a27271b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}