{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfe2a60d18045c327cc27f1f8898f455b27df815493811bf38cf1de577e719b96",
    "signature": "0xd8a550f636698c9117539396b2cb4dcb11b388969de96c4dd7188bf69b4f15fb1475ab74b4ec8745f3449a1f8f616841fe60bee6736d43048bebbb6061e99d2c1b",
    "signer": "0x05879c5e12AD06542dCf5d3192dDDeaa2faa3754",
    "userId": "445555"
  }
}