{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175719",
    "entityType": "User",
    "nonce": "0x07d28f9ce232371987ef00e7d5783a16bb0a7df830eba14955c6d37cf4e62d64",
    "signature": "0x1d9b9df18097bdfc2286b5c140d279a8768204b5cd23f2ae6c25cd22c28e5ecb16ed5815b702cdf4e6ac99d9ec66625c9f1452cf9cd6c8e91b1511576292c6591b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}