{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381868",
    "entityType": "User",
    "nonce": "0xae81757d4d38868a2f967c52d5f9ba546cbc3df1a44e335a5955a51ccfe30c8c",
    "signature": "0x3897c8e932343900f50640bb77b33ff354c7dcd22bd3903a7c14432075fb9dfb661d0557d7a087c005ec960956be1a292e36e8184141f1596a7b85c2873db2141b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}