After downloading and loading a mobile app, the user is presented with an account registration page requesting the user to provide certain personal details. Two statements are also displayed on the same page along with a box for the user to check to indicate their confirmation:

Statement 1 reads: “Please check this box to confirm you have read and accept the terms and conditions of the end user license agreement” and includes a hyperlink to the terms and conditions.

Statement 2 reads: “Please check this box to confirm you have read and understood the privacy notice” and includes a hyperlink to the privacy notice.

Under the General Data Protection Regulation (GDPR), what lawful basis would you primarily except the privacy notice to refer to?