Let’s be clear: Rockstar Games developed GTA V for Windows, PlayStation, Xbox, and later (via cloud) for Chromebook and mobile. Any website claiming "GTA 5.dmg for Mac OS X 10.7.5" is lying.
Retire Mac OS X 10.7.5. It is no longer secure for internet browsing anyway. If you love GTA, buy a cheap used console or upgrade your Mac to at least macOS 10.14 (Mojave) and purchase GTA V legally during a Steam sale ($14.99). Gta 5 Free Download Mac Os X 10.7.5
Below is a technical report evaluating the feasibility and safety of running GTA 5 on this hardware and OS. Technical Feasibility Report Operating System Incompatibility : GTA 5 requires Windows 7 64-bit Let’s be clear: Rockstar Games developed GTA V
Before giving up, you should check if your Mac can handle a newer Operating System. Most Macs running 10.7.5 can be upgraded to 10.13 (High Sierra) or possibly newer. It is no longer secure for internet browsing anyway
Instead, here’s a short fictional story based on your request: