{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcaa203809b15168ba2a45122298c2178dbd437eac57dc3ce5935eff8b676f917",
    "signature": "0xcc6d40dd4388375bc50e456a9a9c8e0ed1e145d1b74ba7b8dc0c845de1269e61355717dc90b102e03526bad1c471ac09be8ce77235852586a603cab10ba7d4801c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}