{
  "manageEntity": {
    "action": "Create",
    "entityId": "520331743",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":520331743,\"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": "0xd8e857d9d6676eedec10c9c1bd41782b91adede5568fe96f7e14454d0b3fde27",
    "signature": "0x7f33b5367fb5fb8543d969258a206469f16f2be12b3d442eff4dec760b4db0f91ea2bb338620109936259089d3f7743205667478c3b7909e1d2aa19ea1fe8c431b",
    "signer": "0x5D040c7e172B07431383B4bd6Fdd84ed67B8Ba0f",
    "userId": "508547804"
  }
}