{
  "manageEntity": {
    "action": "Create",
    "entityId": "1501694950",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1501694950,\"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": "0x52cd4881f02e6b1c5fef00341b09b43fb025849d3b258bc396b45f98a0367ae3",
    "signature": "0xcba1266437910d48476ecd9bbfc968eb28c290391a550eefb4c22b7edec5dac35486326ad391b40fd1c8138b661a70ab00ed8327e2374d5ab9956a1931e181081b",
    "signer": "0x3E5E1eDC4E157E0bEbf0EecC8Ec612c26032Bb81",
    "userId": "571586821"
  }
}