{
  "manageEntity": {
    "action": "Update",
    "entityId": "308652787",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"\",\"release_date\":\"2026-08-15T12:24:30.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xd684d55061848b7d14a9cbb55c968d2e11f5920759c6dc172b0367dad5c6625c",
    "signature": "0xb7b84a1b7bd13c10122c1db6bc80df008182228b0f6aedc94f09f53dae8b1ad30f41bc60b1dc87055c31e9a2baa7a4e19f4ee4782000862c112fdc535b7bb64b1c",
    "signer": "0x9D64Ba2db13FDb1E3e4227F3711d00551046221F",
    "userId": "775914958"
  }
}