Generating and utilizing digital visual codes to grant privileges via a networking system

A system comprising:

• one or more memory devices comprising an action identifier and user identifier for a first user of a social networking system;
• and
• one or more processors configured to cause the system to:
• generate a digital visual code encoding the action identifier and the user identifier for the first user of the social networking system;
• receive, from a second computing device associated with a second user, the user identifier and the action identifier, wherein the user identifier and the action identifier are obtained by the second computing device by scanning the digital visual code;
• make a determination that a combination of the user identifier and the action identifier obtained based on a scan of the digital visual code have not previously been received;
• and
• based on the determination, perform an action corresponding to the action identifier.

A non-transitory computer readable medium storing instructions thereon that, when executed by at least one processor, cause the at least one processor to perform operations comprising:

• generating a digital visual code encoding an action identifier and a user identifier for a first user of a social networking system;
• receiving, from a second computing device associated with a second user, the user identifier and the action identifier, wherein the user identifier and the action identifier are obtained by the second computing device by scanning the digital visual code;
• making a determination that a combination of the user identifier and the action identifier obtained based on a scan of the digital visual code have not previously been received;
• and
• based on the determination, performing an action corresponding to the action identifier.