Payload Specification

Param Name	Required	Type	Description
`first_name`	No	String	The first name of the customer
`last_name`	No	String	The last name of the customer
`age`	No	Number	The age of the customer
`gender`	No	String	Can be either `m` or `f`
`language`	No	String	No more than 2 characters
`address1`	No	String	Street address line 1
`address2`	No	String	Street address line 2
`city`	No	String	Customer address city
`state`	No	String	Customer address state
`postal_code`	No	String	Customer address zip code
`country`	No	String	Customer address country
`birthdate`	No	String	Must match format `YYYY-MM-DD`