User

Attribute	Type	Description	Example
id	recommended, string	Exchange-specific ID for the user. At least one of id or buyerid is recommended.	"1"
yob	optional, integer	Year of birth as a 4-digit integer.	1984
gender	optional, string	Gender, where “M” = male, “F” = female, “O” = known to be other (i.e., omitted is unknown).	"O"
keywords	optional, string	Comma separated list of keywords, interests, or intent.	"game"
geo	optional, object	Location of the user’s home base defined by a Geo object. This is not necessarily their current location.