{
  "manageEntity": {
    "action": "Create",
    "entityId": "1517867889",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1517867889,\"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": "0x141abaa910496ab00af042b18afec061e993e57ce57e296605b00d29e2f1b178",
    "signature": "0x72aa2fbabb7c8a671f02a251c62b03e2302f8cd3b2722a19379bf57b144b72da707194dbf0295db7ce73cc17f2ddface3776e129b9ee832fd187a27ecfbd1a501b",
    "signer": "0xB7CEc918512459C1bE26e443206092dB3F7FD83B",
    "userId": "917739810"
  }
}