{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xd47b8c819c97d23eb1e8ee952820213c68a76ae59cfd98110110d5f301fb7e66",
    "signature": "0x17d5c2330a3daf3e4ed7a996bfe6683765e9d4065ddb4f9469d46e3915ca138e0a61d3546d252d4461396f6852944d28ea54a49c8411671a3b7849f4a1456e8d1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}