{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xd23080bce38064d23db0f937ec64c67fea49f0899e18a5c04435696a95d1914b",
    "signature": "0xf3b23e8481654ebc4c37edaa70711d6ed9afd6cedee9f24776f2ac72280e4f32141479dd149c258842ec1b5840bba80a0d7269513cf68ab1c39e20ccbbd3b0501c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}