{
  "manageEntity": {
    "action": "Create",
    "entityId": "1589675117",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1589675117,\"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": "0x611e59122390f0fdfd699497af692050ada71bff7cf9349b99c4c77d79bf1cbb",
    "signature": "0x69b6de2de164e8d636007c781ca9f8edf3d8f0954ba439cecbfa3fd40b791b562f1f94123c4843ab941480accae840d9de2f915c9de7d58be92466331f77e1ac1c",
    "signer": "0xDD3Cb841c7f19ec5581F8E2b14d6f7a58B92d0F7",
    "userId": "582464754"
  }
}