{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "673427724",
    "entityType": "User",
    "nonce": "0x46424d0720305d17f0f9a04e44429abbc3b2a0f7bffebad2dc87733f1b62a806",
    "signature": "0x4e9b575d16ef4a19e31a3cc451a27c44bc9192d21373d1e44a2f54eb7075aee228c90537c98303bcd4529acb5ff417e9885c7fea846fd06ce22b877c238023e71b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}