{
  "manageEntity": {
    "action": "Update",
    "entityId": "1219668067",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New playlist by Prof. Manuel GAGO FERNÁNDEZ\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqseacen2o5mzhnllm4fcffq5ysrt5icjl7e342fg6cb633x7u5hhouq\",\"release_date\":\"2026-06-09T16:27:30.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1781022513,\"track_id\":1765257486},{\"timestamp\":0,\"metadata_timestamp\":1781022529,\"track_id\":152867001},{\"timestamp\":0,\"metadata_timestamp\":1781022535,\"track_id\":214941993},{\"timestamp\":0,\"metadata_timestamp\":1781022541,\"track_id\":751577964}]}}",
    "nonce": "0xd92dfe88c8ef078c6ea0ac724dcc6c7572a0e2f4339e7626503c1dccf240e61e",
    "signature": "0xf78092f7baaf014ecc01888deb609b4ad62faaeb66a98cff7d13d8a0067a21a40e71c9f41f31054a9102759b7f047b0cd5e9ce7f548f52605ee97a8b67e25b051b",
    "signer": "0x18a7B3405E81900d8aF72d98D5f2C54e2C988f9b",
    "userId": "42634173"
  }
}