{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x6fd54f1c9815dfacf2a1ec0da37d183b55159441eb736e6e3b90ae037d499c99",
    "signature": "0x3ec9dd137106d5696e62ccfa9f13543fb908873fbce78e9d78b4014dd0d876404e6690cc2ded35a5a173777239f7c8919dfc4ac53b3b6f57a734f9dbc51586ac1c",
    "signer": "0xf92227D1CE8426bD2A05c637f3E5D3582E1CEEde",
    "userId": "386569100"
  }
}