{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335589",
    "entityType": "User",
    "nonce": "0xb56bf6aa4e209e8d324e00a518f939ffa195e5eba635bf9a978939a18fedae6a",
    "signature": "0xa037448bfdb040ca45fff71638b7ac05eca7bc7c5976ee6c9f1da6e630f4ab572c3ee95c77274f9f6f341a860b99c186ee8d80b40c5ca74f9bf5a45e5c3de86f1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}