You could read the data into a pandas DataFrame Object with the pandas.read_json() function. You can use this DataFrame Object to gain insight into your data. For example:
data = pandas.load_json(json_file)
data.head() # Displays the top five rows
data.info() # Displays description of the data
Or you can use matplotlib on this DataFrame to plot a histogram for each numerical attribute
import matplotlib.pyplot as plt
data.hist(bins=50, figsize=(20,15))
If you are interested into correlation of attributes, you can use the pandas.scatter_matrix() function.
You have to manually pick the attributes that fit best to your task and this tools help you to understand the data and gain insight into it.