{
  "manageEntity": {
    "action": "Update",
    "entityId": "1376588451",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsecvf3rgmuqz2w463ruvc6mb5tawoxtek64htijgco2zh3cmlibkae\",\"release_date\":\"2026-05-03T15:09:04.000Z\",\"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\":1777821159,\"track_id\":566583685}]}}",
    "nonce": "0xe378ed2955450809e1f6cc7c24be890fcebac6bda8a911b58b989063b0d2226f",
    "signature": "0xc9436def18f7d36a7f2680b63eb8e6fc456e11cef5405da35f110980948b2fdd15a35254fbc46cb90a505001b4f8e2c83384739e108755ddfaf13d8de30c5b041b",
    "signer": "0xb0ec0570211d20D71D52f91ea6744C062a204F3A",
    "userId": "841622517"
  }
}