{
  "manageEntity": {
    "action": "Update",
    "entityId": "1270161678",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"Test\",\"playlist_name\":\"Test\",\"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\":1780262174,\"track_id\":306888232}],\"is_stream_gated\":false,\"stream_conditions\":null,\"is_scheduled_release\":false}}",
    "nonce": "0xfb056b7b8f2906ea4aaa46b1ae2c3f65c590f5dd4c0f1454d810cc99f6a9e39a",
    "signature": "0xf1d69d76f2226e02138e5e9be2da19b3f21761e113537397ff5e056f3c8d22f947a4c9193b0661496c28148eb9e1d6fc16ddc539054652538ad03cdcea865a531b",
    "signer": "0xCaE1ee7dc4DB493ceab857fd89C09fA305C4c5d4",
    "userId": "648743045"
  }
}