{
  "manageEntity": {
    "action": "Update",
    "entityId": "871599865",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"x13\",\"is_private\":true,\"license\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"playlist_contents\":[{\"timestamp\":1780740756,\"track_id\":1756111849}],\"is_stream_gated\":false,\"stream_conditions\":null,\"is_scheduled_release\":false}}",
    "nonce": "0x9a53d7a54a0eb5149943bdd74561d99e01f402aba5279335ac7f685e0c33ec29",
    "signature": "0x582ba91ef5bb2140f41351bee55d1140342e19a2974f0470b7ac8207489d249d0e5cac68238279015ca16cf90bd43e8e80e87184f04e3b89ef09c8205a5708ca1b",
    "signer": "0x88c769B5594fA1e5AEc33e17472E952E788bb0E3",
    "userId": "147939951"
  }
}