Python - TypeError Object of type int64 is not JSON serializable

Question

My data frame has store names and daily sales counts. I want to insert this to Salesforce using the Python script but I am getting this error:

TypeError: Object of type 'int64' is not JSON serializable
Below, there is the view of the data frame.
Storename,Count
Store A,10
Store B,12
Store C,5

I use the following code to insert it to Salesforce:

update_list = []
for i in range(len(store)):
    update_data = {
        'name': store['entity_name'].iloc[i],
        'count__c': store['count'].iloc[i] 
    }
    update_list.append(update_data)

sf_data_cursor = sf_datapull.salesforce_login()
sf_data_cursor.bulk.Account.update(update_list)

Can someone help me with this problem?