{
  "manageEntity": {
    "action": "Create",
    "entityId": "1443435309",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1443435309,\"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": "0x7854fd775d9ef806221b49d205758cd3a04a138c500be727314846dc1a69d469",
    "signature": "0xdaa423ddd4bf1910616e3dd78e20918d73216778da9f3128e249855ef901491e24c745a18942f8baa0b2f1ca8306ad197fb0074c2dcc2598b57d44ef2d53acc31c",
    "signer": "0xdA708531501D4f46C162eDBca1D759CB6e7447c4",
    "userId": "985405611"
  }
}