Drain the chickpeas, but reserve ⅓ cup of the liquid (aquafaba). Pulse the chickpeas and hearts of palm in a food processor. Do not overblend.
In a bowl, mix together the aquafaba, 1 cup of the bread crumbs, lemon juice, mustard, Old Bay, salt, garlic powder, hot sauce, and vegan mayo.
Add the mixture of chickpeas and hearts of palm to the bowl and combine with the other mixture.
Form into patties about 3 to 4 inches in diameter.
Add the remaining bread crumbs onto a plate. Roll the patties in the bread crumbs.
Panfry in the olive oil on medium heat for 4 minutes on each side or until golden brown. (Refresh the olive oil in the pan if necessary.)
To make the aioli, mix the vegan mayo and hot sauce in a small bowl and serve with the crab cakes. Garnish with the fresh parsley and lemon wedge, and enjoy.