{
  "manageEntity": {
    "action": "Create",
    "entityId": "546343000",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":546343000,\"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": "0x66685a8a420193087d1bf5c9e6a8b7e4b21c3a19b329a0f698b09b82e47b996d",
    "signature": "0xb2f187bd3fdfc8b8e3a6063bc356cdd8781752678673995eac88f796a727775820846104400a4b590f2752186ac4169d302ec490e64bd533a810f11d9a18d9ee1c",
    "signer": "0xD3369c611465F11512aF702F20e281a94fd13be8",
    "userId": "843617017"
  }
}