{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887242445",
    "entityType": "User",
    "nonce": "0xbb50bd84beeafd5236fdf1f0ab616629f3fc5b6dc3ad92b598a16dec8316d7aa",
    "signature": "0xecfc0b1f45f269c450ac777bc9549898fa70adf0f60c948afad33551dcf8e5fa4838891a189a8df15c0f1c7ea4ba10d085531243e9527ec74766a6c829a5751d1b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}