Normally I would say it's impossible to tell, and probably not a tickle anyway, but I actually think that might be what they were going for here. There were a couple of Tweets from around about late 2017 when this match happened mentioning that Alicia Fox tickled either Bayley or Sasha Banks during a match at an untelevised house show. Here's one:
I'm pretty sure I remember another from a different night in a different city. Wrestlers will often perform spots on these shows to practice them before doing them on TV. Considering the timeline here, I'd say this is probably intended to be a tickle. Of course, it's wrestling, so whether or not she actually tickled her is up for debate.
Still though, impressive catch OP! Hell of an eye you've got.