{
  "manageEntity": {
    "action": "Create",
    "entityId": "1357487530",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1357487530,\"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": "0xab0fa2dd62de15fbda0bb476ce75dd14bdbd2d2325b5de6992092f6bb420c4ba",
    "signature": "0x65e7489fdbf3df68ea7f47e4283a1846c6c7d6b49a7045cc9568a6f11906797d7bf234b8113778f86a8c8911672121ba26ac081bed87c4eb18c0df20546c58bd1b",
    "signer": "0x4aa5a207F36Ff1E12cbEfB5ef08bb83F8bF21F68",
    "userId": "562613548"
  }
}