{
  "manageEntity": {
    "action": "Create",
    "entityId": "1915956780",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1915956780,\"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": "0xdfdd2e057ed3de41d52cb70780073c4331f973300cb4eb403cad6484b0bbbd9e",
    "signature": "0x666e174e3cb5361e41d1617d72f580bdf9690f588c13df4f19700fe8cf009a1a2a68f45d89dc4b11f3e65670852debfbb55d3889a6fd74605e5b4379161ea9381c",
    "signer": "0x4530b8B58aeF2F3E7e02da858d92E5880888F3f0",
    "userId": "181748389"
  }
}