{
  "manageEntity": {
    "action": "Update",
    "entityId": "1912564559",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"Electronic\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqsecbiceh7x74vtgae5ydrcsy7n6twmu3gbgw26cietwz35py2wt2jw\",\"release_date\":\"2026-04-12T13:19:43.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":1776000193,\"metadata_timestamp\":1776000193,\"track_id\":401202639}]}}",
    "nonce": "0x8be9ed6e7f3cbae9628540ad9a33081272a8fdaa83e9963038023c9eb258a8d1",
    "signature": "0xc27ca4861bc36d483d1fca1eed4ca84f6b81dd4510f029048866659887e18cfa30ab403cbbc6fc78db97af3aa659ea51a4d02e96db9bf7b34da0dee059e630e71b",
    "signer": "0x3DdfB99173Ed7ff3A083C9C589582B230d37906E",
    "userId": "192527938"
  }
}