{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12566",
    "entityType": "User",
    "nonce": "0xf902fc052dd55775b4c71dc3d9ed600f7ec3415393f375c14ca784b66e817f7b",
    "signature": "0xccb7d20e8745afd515715802aeb08c5b05d4905704be410896b66ffd40b7f97f4e83938e50fa3e2ace53e7b1f7d2498bad7a6e5eab3a644a49508147334bbfc41b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}