{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x6be9b4632f9c165b75fb7f24a61ad8080e1071454556da76f50bc057d1bbe875",
    "signature": "0xf12f365791209132648680f20ebfa4bc931ecadf5caa6c24d7c489b70a6af90e0ac5cfb8521ba36898f02d9e11e9c4a829cae160d4bdaddb0fda97585190bb7e1c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}