{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x0a128c6433b8bf5d06f56b8ae8ed72c17b2cd0f5a928bcd5c5d0deb9c6a8a5cf",
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    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}