{
  "manageEntity": {
    "action": "Create",
    "entityId": "1728889731",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1728889731,\"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": "0x07bd09b894ffdf30ecbb94a641cba4ea1397f318ab6bcd7cdabaf698bef60d00",
    "signature": "0x3516c415a21cd3927e75b1af752255120ba06b3b1914c58c671c7ca83e3ba6e54a3db30eb1fdea840dcbed6fd4dcb3f8ced3decd7620ab7c25c709fe52ad34201b",
    "signer": "0x12aD0F6A7Bf3ef1Fb0FFE6e1eF9E50BCa3149Af5",
    "userId": "323879851"
  }
}