{
  "manageEntity": {
    "action": "Create",
    "entityId": "378085801",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":378085801,\"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": "0x75152fe9acfd6ffdd28752406673420ee6e5f6cfd081811918e00d8ffda7dc60",
    "signature": "0xbd7feb8dd0ff6903f5e347d856884a4b91cd463279ad3face0be73be44860741668b539f695350783c9737b100d3ef4fc0fa5e444661a499d897c06a1de36a171c",
    "signer": "0x38d3B9FAb2cf670906cF7F84FA853F7557B51D99",
    "userId": "517504222"
  }
}