Contact Service Object

Field	Data Type	Description
contact_id	string	Unique identifier of the Contact
account_id	string	Unique identifier of the Account
service_id	string	Unique identifier of the Service
unread_message_count	integer	Number of outbound messages for this contact and service with a null read_at
service_display_name	string	Display name of the Service the Contact belongs to
account_display_name	string	Display name of the Service's Account
last_message	object	Object containing id, body, direction, and created_at for last message sent to or received from the contact
created_at	UNIX timestamp	Date the Contact was created
updated_at	UNIX timestamp	Date the Contact was last updated