{
  "manageEntity": {
    "action": "Create",
    "entityId": "1398775920",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1398775920,\"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": "0x8ee1af74ed4159987eb34fe3212afc064a5f2e483cc8039b59050b7297c179ad",
    "signature": "0xe82b4f8be0f4765ae1c73077b4a7b0a207f119c31a1910b6971197ebae84d8b95f09738568d2d70e684615b5c41a9450663866f7825295d46d51ced8a2f452591c",
    "signer": "0xcDd4bA67dFa5A12799fdF828BAe6484f14Fb02Fc",
    "userId": "502753271"
  }
}