{
  "manageEntity": {
    "action": "Create",
    "entityId": "1607049170",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1607049170,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x9a3840e0a422fefb88103ead9bba8d36131c16995e0c6d302c83f4d8959d4e5a",
    "signature": "0xda0bc071253f733d621c2f0709e5d3a9bc7a9630bcea28b6cfe117fcef11a078708ca288590f96eaca8599d24ffd87253bb9ca34aaf3a4f8ee03b98f271eeb691b",
    "signer": "0xdA708531501D4f46C162eDBca1D759CB6e7447c4",
    "userId": "985405611"
  }
}