{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203753098",
    "entityType": "User",
    "nonce": "0x94ec2a67e41fc80f1d8f25987a908e96a9da4e1fb4695431e582d8ab6c7ad32f",
    "signature": "0x1f46b45dcb32e29d7dd8d2ce7cc9f2731febeb1e73b318902a334926c04072c807aa9ceb16045c7595ce2a058fba1fd032b1635e7d8493288a9b4968096461041b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}