{
  "manageEntity": {
    "action": "Update",
    "entityId": "608514757",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseaus3kujw3w2apjuwpcmad23hkjtqypuc5atyhyubtj4owhzdc42i\",\"release_date\":\"2026-04-10T19:42:02.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":true,\"playlist_contents\":[{\"timestamp\":1777552906,\"metadata_timestamp\":1777552897,\"track_id\":1223307172},{\"timestamp\":0,\"metadata_timestamp\":1777553408,\"track_id\":942685}]}}",
    "nonce": "0x94d7a3dd6010988d6081731f1e112269b34543ba3449d0d1b36ace0f5260264c",
    "signature": "0x29f8f193f27589535473361cc5e062b5dc0bac29cf2829c383d769def32860cc745a7f48be71ea670c74939b18c5912a3d453df22dfdb30cc1e91da04ff4a71a1b",
    "signer": "0x158237a21e2579FF1B41624708F45F0394E6ad9C",
    "userId": "186303935"
  }
}