Manny Medina, previously best-known as the founder of sales automation startup Outreach ($4.4 billion valuation), has wowed investors with his young startup, Paid. Paid just closed an oversubscribed $21.6 million seed round led by Lightspeed. With the €10 million pre-seed round it raised in March, London-based Paid has already raised $33.3 million and hasn’t even hit its Series A yet. A source familiar with the deal says the startup’s valuation is over $100 million. Paid came out of stealth in M...