{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xded110bb283d4f1f39f750bf7015e7676ae2516b4dd43260b0bd73569d6c95e0",
    "signature": "0x668d2e9a6385a2219a7f22e0c44ceb7f29e78119c6c57123185e4d0e8b82b8a14c043aeceaa5ee9db1209ac3fe6e86afa8ff0c9a207e95f32321da529a8c834a1b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}