Simplify the following text for a Grade 5 native English-speaking person.
Original: Following her success , Chase was then signed by an agent who specialised in commercials and at the age of 7 , she appeared in a Campbell 's Soup advertisement .
Simplified: After this , Chase was then signed by an agent who worked mainly in commercials . At the age of 7 , she was in a Campbells Soup advertisement .