{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x89e4e8d3cef3c6c8f564fcec5e43f46c42d66f5335b184cbe50ac090cfb4adb7",
    "signature": "0x05d8d92bdd444128211259e06743a8b11436c77db7fb377aebb0160608523570443e4776cd75e8af06c8c45799ffb1320430b0f84fdcda675d5dd4a43d2ef17b1c",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}