{
  "manageEntity": {
    "action": "Update",
    "entityId": "254629962",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"\",\"release_date\":\"2026-04-28T16:52:08.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xe4fd39f015e9829d5c6c7e5a58167c697d35a7818a9d15aa4729dfda9011f12e",
    "signature": "0xc869fc38b45559aa471320c2e25889f0232f0b8e5a6704e2b83bb364236a9ea63f2d63646e6572b85e8b626f4d380d581a9ed12a0d779ffd82b0857c29d7691b1b",
    "signer": "0x705C3Be1F27A9694A390A0a58287440a6b43349E",
    "userId": "193978537"
  }
}