{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x8f3cc92af245f8f1996f272002ae81ed7aef86a95bdf8d38ae342e85a613bd5f",
    "signature": "0x88cd08547f0f821b004a833a59a790a1774de4d76ad163b297e20a8df34d774f0a792dbd3998a2ee7ac7a0019ecbed5ca2fd0fd76b84f454a4159e335a0894311c",
    "signer": "0x8a417A9AEAf146E3136a487b2F098b49b74b7842",
    "userId": "862983276"
  }
}