While in the Hive nightclub in Hengsha, after talking to Tong (in the basement) go to the bar and order a few drinks. After that, an option becomes available to do a job for the bartender, Bobby Bao. He will tell you about a woman who owes them money.
You will need to go to the Hengsha Gardens area (where your first primary mission objective and Hengsha took place), hack some antennas, and then locate Jaya. Once you find her, she will give you the option to pay her tab.
Or you could knock her out, and take her money.
Either way, once you decide what to do, go talk to Bobby again. Complete the quest and the trophy will pop. Pay Jaya's tab (5,000 credits) and you will also get the "Guardian Angel" trophy.