{
  "manageEntity": {
    "action": "Update",
    "entityId": "1321081669",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"My Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsedw2te66miezpw4uhnprirp4jwyefbbr3cgw2jxmjsohogsshopl2\",\"release_date\":\"2026-08-30T16:17:17.000Z\",\"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\":1788107853,\"track_id\":574575819}]}}",
    "nonce": "0xd732fefdf60e7452c709a0ffa04e8977499f7f1d8c92936911e3fa5de6a2e3f1",
    "signature": "0x2f2a15ba8a1cc676b1cf0e79d441131de302c46b41067bf7d4f3af33fce8ae231ca2785930450c85417459a9b690cfacbac0abc657852dcf041c22dc2bffe40c1c",
    "signer": "0x997892Ba3dA104CdcAb8b169555d48E2884F6eC3",
    "userId": "137744695"
  }
}