{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967323686",
    "entityType": "User",
    "nonce": "0xa9fc1667358190e6fb624e1a5d517844657500937a9b7d002c4fe7a436cbd116",
    "signature": "0xcfd1ec9f61cd60267e081e28fd2e91f4a3cc63ae21e5ecf98648fb97ef55a3f05534589ffec191463ae2a4f3ae567116f8bec6ad68efcafe06cdeb1d25882c7e1b",
    "signer": "0x91A0243d0c4b44cB682cB60883cB72C26a8Eda55",
    "userId": "298293683"
  }
}