I don't like toggle bolts for many reasons but would use them if I could locate and drill into at least one stud in multiple locations (top and bottom). if not, I suggest locating the bolts on the wall where you want to install the bracket. Next locate the studs, use a strong magnet not one of the gimmick finders and layout these locations in pencil. (Hint, try to locate the bracket between two studs if possible.) Cut out the sheetrock from between the studs (6" wide), in the area where the upper screws attach. Install two pieces of 2x3x3" blocks on each side of the opening and screw them to the studs, remember to set the screw blocks back enough to replace the sheetrock. Install a 3/4" thick piece of plywood in the slot and screw it to the blocks. Replace the sheetrock/paint and install the bracket.