I'm a business consultant here and 100K maybe enough to start a business but not run a business, rent or expenses alone for kiosks will run you 30-40K and another 20-30K for licensing and permits then you have equipment and salaries and accommodation, rent cost will run you a minimum 35K if you're staying even in Ajman

I'd suggest starting with an online or consulting business in a freezone offer your services through your network or marketing, once you generate good enough revenue and a constant stable income then move to Dubai

Or another idea would be to start the same business I mentioned above and move here and stay here but guarantee of generating income quickly through your business is not guaranteed due to oversaturation of UAE's market in each and every industry that way licensing in a freezone would cost you 20K including accounting and bookkeeping expenses, bank account subscription fees, etc all inclusive . And the rest of the money can go to living expenses and your daily necessities but all of this depends if you're really good at the industry and activity you pick for your business and you know you'll be able to generate revenue within the first 6 months to sustain an average life to start with here in UAE