{
  "manageEntity": {
    "action": "Create",
    "entityId": "1210419250",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1210419250,\"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": "0x55965dfc848d6b230741f2c26a255fd6a7c601a117acc8a8340a181a191dc5f3",
    "signature": "0xe6b233370fae930cd0898384018fd34e362c8bb58acae6e1faad96740ebc40a72b18128ec7ca74c045a5c357d01d8fa0ba14dadbca3afc47f355e3bbb2d2b0651c",
    "signer": "0xEFec33FF65644dee8EaE96E99C93429330B67c16",
    "userId": "513100334"
  }
}