{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4a769fa6cf37a713d6eb8237cf725485ab834c9bf59962286ca430df26fea36f",
    "signature": "0xd306cf7a06df30c8a64f0c7d6a550e4099feace604e77e75e758d1fe3673e3a2554db8f82a37a1994c6a9635bd6a31e2b39af67ec745c2971095134657d718581b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}