{
  "manageEntity": {
    "action": "Create",
    "entityId": "1449053280",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1449053280,\"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": "0x34d1580f2c65a7a82d62b145231ffc9f61dc22528061187dd6678b0d9d61b8f3",
    "signature": "0xeb6cd7418aa415d14b86e8677606a020f7064b0107ee2396943c53e24e184c5f46f196f8a52312ec85c7b6744096e17d8f6185d4f0a39e2602c8a13b6330106f1c",
    "signer": "0xe7DDA4e7fFdbafC17817455fcd57637e5B7f3b5C",
    "userId": "624315005"
  }
}