{
  "manageEntity": {
    "action": "Create",
    "entityId": "1298318390",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1298318390,\"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": "0x62be3c748cda86a552cc8af581162d16681e226b435ae8e2709162a381a138ef",
    "signature": "0x89bb644c75b502da8ecb398c5beda5a92737527ff10c50391465e1c0833e94890bc09b80e2feacafbc564158f1da1acc7a01b6f974a7520a3dadcde2a02333481c",
    "signer": "0x343Dd66E948d0E94596Cd0eb47e9be7622F41072",
    "userId": "260120577"
  }
}