{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xcf58fbca997ef54102a03b3e27904dc4b005b98f4c4db285c439e77027e91fbf",
    "signature": "0x75470e7a0806e1a370e211292ee2acf7e665a3c30d9af37cc8b4b1da93394ae046e684958deb3c3cf46c3fb7713ae330df231bc575b4e786261a2e1c84ebc0321b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}