Loading a firebase database to excel with Power Query

I'm trying to load my Firebase data to Power BI, the data is a JSON map of the following format

{
    "soh4gf1k": {
        "name": "bill",
        "age": "40",
        "maritalStatus": "married"
    },
    "itnhwagx": {
        "name": "jane",
        "age": "28",
        "maritalStatus": "single"
    }
    ...
}

I tried to follow the instructions in Loading a json file into Power Query but in that case the data was in array form, and i can't seem to get it right for my case.

let
    Source = Json.Document(Web.Contents("url to firebase database")),
    #"Converted to Table" = Record.ToTable(Source),
    #"Expanded Value" = Table.ExpandListColumn(#"Converted to Table", "Value"),
    #"Expanded Value1" = Table.ExpandRecordColumn(#"Expanded Value", "Value", {"name", "age", "maritalStatus"})
in
    #"Expanded Value1"

throws the following error:

Expression.Error: We cannot convert a value of type Record to type Table. Details: Value=Record Type=Type