Document signed_up_at, last_seen_at and SMS consent on bulk contact updates (Preview)

descriptions/0/api.intercom.io.yaml

@@ -15642,6 +15642,10 @@ paths:
                     avatar: https://www.example.com/avatar_image.jpg
                     owner_id: "321"
                     unsubscribed_from_emails: false
+                    signed_up_at: 1571672154
+                    last_seen_at: 1571672154
+                    sms_consent: true
+                    unsubscribed_from_sms: false
                     language_override: fr
                     custom_attributes:
                       plan: pro
@@ -42191,6 +42195,26 @@ components:
                 type: string
                 description: The updated contact's role (optional).
                 example: user
+              signed_up_at:
+                type: integer
+                format: date-time
+                nullable: true
+                description: "(Unix timestamp in seconds) The time specified for when a contact signed up."
+                example: 1571672154
+              last_seen_at:
+                type: integer
+                format: date-time
+                nullable: true
+                description: "(Unix timestamp in seconds) The time when the contact was last seen."
+                example: 1571672154
+              sms_consent:
+                type: boolean
+                description: Whether the contact has consented to receive SMS messages.
+                example: false
+              unsubscribed_from_sms:
+                type: boolean
+                description: Whether the contact is unsubscribed from SMS messages.
+                example: false
               external_id:
                 type: string
                 description: A unique identifier for the contact which you have