We take into account different parameters: likes, comments, number posts, followers, audience reach, industry, country...
Then we come up with an estimate of the price of one post on that account. Currently the minimum is 9500 followers to be eligible for tokenization plus some other statistics that we check.
More questions. Suppose I got 1000 tokens for my instagram account, am I free to sell the tokens for fiat currency? What happens if my account gains or loses popularity later? What if I close my account?