{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1506961",
    "entityType": "User",
    "nonce": "0x7bb109b92ca8aa626108c898dc308adb942606ed337431d2b661dd5a2d834cb9",
    "signature": "0xe32a1a9e3cbcd74fc2162ecfad0ca78fc0f9db13692dbbbe8f6b151729e1530f68334c7cf635ac526cbf0aa60f492d7466610f9c32e9a65621b962d459faa2ad1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}