{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb964feae595e55858e1edfc223b92acb623f968dd932dc096739c3439dea5a2b",
    "signature": "0xab7a65572c452b420ab76331e1625ce3a768a155e6c4dd31b5c32d88e689069b01cb8ad58a75d3e4ed0e3e4e1a7809a6b195cd08bc8c08942b6b328a45c14bff1b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}