{
  "manageEntity": {
    "action": "Update",
    "entityId": "219899477",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"1st SINGLE\",\"playlist_name\":\"Supernova\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqsecvf6dg4usvxe2aflkyzfs7dxljizv4ywou7xn5rs45p5ik2q7vey\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":1775752193,\"metadata_timestamp\":1775752194,\"track_id\":1433863665}]}}",
    "nonce": "0xc8aac692e491ca76ce331c0b890dadf7feccd492c03475cab86dd061f0928801",
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    "userId": "36816786"
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}