Wireframe & Structure for Marketplace App

I need a low-fidelity wireframe, database structure, and user flow for a service-based marketplace platform.

Key Requirements:
- Low-fidelity wireframe
- Comprehensive database structure
- Detailed user flow

Ideal Skills:
- Experience with marketplace platforms
- Proficiency in wireframing tools
- Strong understanding of database design

Looking for someone who can deliver ASAP.