{
  "manageEntity": {
    "action": "Create",
    "entityId": "1903467206",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1903467206,\"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": "0xf3da92fc944445926547a2895470f7c88fd234eb5f2d53f23cf03f76c829a7ee",
    "signature": "0xc22fd3870348ace26b0dc72eab3500ffcc6376b074103779daa482084907a10900a858857d4583424358a32e719a7eaefa09b70fdc5b8f33ac3f92a2035421621b",
    "signer": "0x7173743A42637B8FCa1dB2218B9828Fa14b3995C",
    "userId": "763221081"
  }
}