{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2015258",
    "entityType": "User",
    "nonce": "0x00d03cb1cd70765f6ae174efb6783459fe99dd92128a45b61550f7e6c295d509",
    "signature": "0x7afcdda418a5ee9b7d3a07186d5000eabeac6a46ed6bf3183f99aa0880190e8a4bfdbba1512a315fccebdfc1577e098d030d46e470b0e410c2258913e33b1ce21c",
    "signer": "0x0FcAb20e0C97D4d3d08C8fFD891B8210fa488beb",
    "userId": "170294"
  }
}