Cannot convert extremely complex, very deeply nested JSON into dataframe

[Slowly]

Unfortunately, it only works on eeeasy and siiiimple, it won't work on the results of a graphql query like this:

query FilterOutNulls
{
customSQLTables
(permissionMode: FILTER_RESULTS)
{
id
name
columns
(
permissionMode: FILTER_RESULTS
)
{
id
name
referencedByFields
{
datasource
{
... on PublishedDatasource
{
name
downstreamOwners
{
name
email
}
downstreamWorkbooks
(permissionMode: FILTER_RESULTS)
{
name
}
}
... on EmbeddedDatasource
{
name
downstreamOwners
{
name
email
}
downstreamWorkbooks
(permissionMode: FILTER_RESULTS)
{
name
}
}
}
}
}
}
}

[Hay Kranen]

I'm not quite sure what kind of data you have here. Maybe you can give an example JSON file?