{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x68ebf5d2c4da2740ed4a1a6c336d65be6ad462d2e56e670264ccede607283f63",
    "signature": "0x36631749eb88fb2189433487fd9fd297abe190879bce8a13c2a5a765e495b416058970fa9fc1118e07e1049a0db7354ef66115d58657f053927caf456556be071b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}