{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x398784064946100425432187ae4e6dc9797a9a0355d27807151fcf3831d2a950",
    "signature": "0x1a6543e01a6fe1732bc66dcd46154859a850dc835ce4b045622c0da1d0da9f236aa1952871c9def14ccecbd203f25e77802bbc7bda1f042cca06bd605f1e321a1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}