{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa784d82f5e80f721683ea0be9ab656d7a829ed1f9b87d905d042a8fe61306811",
    "signature": "0xd0c8aef22ddd11b54b2417f44ce2fa45bd8228390b18c2f5448886660ca9113a47ccee017a5e742e1d49bccd1ec3369490e90f2d1d68054e2bf944bdf1d1b75c1c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}