{
  "manageEntity": {
    "action": "Create",
    "entityId": "553512150",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":553512150,\"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": "0xe8024b05710fe9f1ae3ba449d1e1db12ba07aff2fed0e7641e5fbb137571ce4d",
    "signature": "0xf9c6e990a92f42abe487df58fb57db221e57b6bddf5e5659d02c29fad241b6b2537c6010f312372cdd70caba060067a6b348da0d596b2c2e56b15d41fadb72721c",
    "signer": "0x0c5Aa954a53936B52eB9ECDBf21850214D89DCBa",
    "userId": "8694669"
  }
}