{
  "manageEntity": {
    "action": "Create",
    "entityId": "543162015",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":543162015,\"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": "0x1fb582da29570a8e4075ef29e3b7e2820fb0e77562944f441f76f9e2a0947f08",
    "signature": "0xb9922ab4d569a2174e3db395e92a968e625aeba26c3fd28d3a0ed044ad1fac4343c9435ced8911c13dd66a0676a38e554618977180f47b4eda37abc83e3b9b1b1b",
    "signer": "0xc99376a76A83214456f43BFCf2979fC7Fcb77BB2",
    "userId": "974171108"
  }
}