{
  "manageEntity": {
    "action": "Create",
    "entityId": "1608489488",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1608489488,\"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": "0x812f2777b3e0bc5bddcea87a815a57d4141a515c64ebc2468337c515487e928a",
    "signature": "0xfaf37dce1e62e71cfec6ef4846ce24407545a10887e0996424d18144d22d1d6125f5fefd9b2a260c3d89f0b72cf9d20792b975b8166b24171e4fa5a4ab336f381c",
    "signer": "0x72bB0dBD4F0c2040428c41f3581607C6b41e8353",
    "userId": "959678379"
  }
}