{
  "manageEntity": {
    "action": "Update",
    "entityId": "2021174867",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"A selection of pure techno sounds, from deep underground vibes to driving peak-time energy. Minimal, industrial and hypnotic rhythms in one continuous flow\",\"playlist_name\":\"Techno Essentials\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsecedakhqwrponziwy2m2oi2paaolvc6zppgx76nnxderqilziehjq\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":1777294860,\"metadata_timestamp\":1777294860,\"track_id\":209891942},{\"timestamp\":1777294894,\"metadata_timestamp\":1777294894,\"track_id\":1335344574}]}}",
    "nonce": "0x69530d6bca57e13903649dbda4dc9eb54a1f6a1dc74a6f2d010076820695ee27",
    "signature": "0xefc829185111f354df8cc05f39e65c5709d8e2e7bf033615f2fc983d748d48a245d56495190b0dfa902c39b7dbe0431208424f32303e01d8718b6c0a9b44973d1b",
    "signer": "0x044E8a0c52D10A25362559515A840D07C1a88EB7",
    "userId": "831559707"
  }
}