{
  "manageEntity": {
    "action": "Create",
    "entityId": "200678990",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"cover_art_cid\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[],\"playlist_image_sizes_multihash\":\"\"}}",
    "nonce": "0x483c747a5c9a99326550b80cf84ade96141fb09fcf54f45886ed4140c2f67426",
    "signature": "0x08b9832a0be71200c460573dbf04694c0453e02bf56135ab0783696aa632df950fc2aa4a19a2315a1177ccc29f6b8deed1491cc34f0269fd524fc04c573566c21b",
    "signer": "0xf327E1AA7292af87D17Be6696f3514a449c7e9ab",
    "userId": "558212114"
  }
}