{
  "manageEntity": {
    "action": "Create",
    "entityId": "663817026",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":663817026,\"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": "0x1d3ea7d02022890ab57a7103681630e294f712b9db68b799b4d0b58088aa5176",
    "signature": "0xc1312fb969458c0a12be3ce9f1478b56e991d173b6906144b9f1dd513f5b188a685007d9c492ce71a44a862a3c37ea0c99965ea1423b1711ddc6e4d191c66cbd1b",
    "signer": "0x8de50A40f3EDd9695e3a1fbA5e43C25CA9fF74A0",
    "userId": "156945132"
  }
}