{
  "manageEntity": {
    "action": "Update",
    "entityId": "1804351874",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseajr4dp57u6htlfekcvsw7l6kpcyjgddfqghdpoilzjw7xnrg35be\",\"release_date\":\"2026-04-19T18:43:34.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":true,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1776624825,\"track_id\":460282622}]}}",
    "nonce": "0x9076c524b6db276d296e8abca52936a3e23f234960ccac9563aa92d190e6b8ff",
    "signature": "0x81c944e979ba17789662c33794efe879f7efb5c8068cd6d18671038ea0579da01aa1b5e4a92fad7cc8baafaf72a150eb8e3b91210be818974823b3c04793333e1c",
    "signer": "0xF5Bf60B79701e25bA06ea0277AB8237aA11B3eF9",
    "userId": "651740741"
  }
}