{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb02fc9c21d036a9cfaa6ed6a46e56f0b6cf7a0ad2c3f500d1dd747341b35ff4f",
    "signature": "0x5a2c39657a8527cf09001b13dd13974eb7b199948d14d76d35cc05f8ffddf71d363d2baccd742d8a60073ce858945d7e15ea720b00175d295b8b5c6724f962781b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}