{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xae14937816c6e800735206eb8b3680e2e54b38a879e39f6b5ed2de99dad2be5a",
    "signature": "0x18202b920714c2746bae462cc9da1509da355f4b9406ddc9b0546961c692ab8a0c6d66d4e5fe970e1b0a576d1b23deee5d7227a837d91bfd7ad9c3e91441c2c61b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}