{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310089",
    "entityType": "User",
    "nonce": "0x9c888074eaee68316a8dbfaa6febb88b4ab816ddb539ce16e869498bfc1e1168",
    "signature": "0x20c6b7910727ec96dce993ee1e0c8cb71ecbe1cbe80e279f5d2b058be67c662752cda21156cbd7b2c4446c7172a04bf9aa3e89235d5c41920b8feae1fbae4b651b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}