{
  "manageEntity": {
    "action": "Create",
    "entityId": "2143720601",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":2143720601,\"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": "0x01076e25b31af3d29e15f458fdf111e941a1a31a76cb7400db9e6ff1126cd747",
    "signature": "0x4c5751216ee3ff49b3e06fda0f25ff87e34da31ddf95d64665876907cb4aaadf3a7f4537b3e394b332184e586f4414b0e55ce6490507e8faf9f0746963f064981b",
    "signer": "0xB3CCCdE1D0E83236E61b43A0C53a57b049c88445",
    "userId": "700560752"
  }
}