{
  "manageEntity": {
    "action": "Update",
    "entityId": "1483355351",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"\",\"release_date\":\"2026-05-15T10:01:49.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x88acdbb1476f111a3837f6723843c0016bd5165a4e445a2c7225c7e9523135ff",
    "signature": "0x9997f6a3b2340906169687cb7e7941fe9d026d47835c73c6f44f0b82d94dbede10dafe701b86b905694ff63c8b60c0963d8be7583955ce43062079c06062d9fb1b",
    "signer": "0x0C9AEa01FA89c6397d469Cc761335021a2a5B07C",
    "userId": "364579809"
  }
}