Tonight's the night ... WWE Superstar Big E is cashin' in, using his coveted Money In The Bank briefcase for a title shot against Bobby Lashley -- or Randy Orton on tonight's Raw.
TMZ Sports talked to E ... and the 35-year-old SmackDown star, holding the MITB case, made the announcement.
"I'm a big proponent of setting your intensions, and I woke up this morning and I said, let me set my intentions to be a world champion here tonight in Boston," Big E tells us.
Of course, Big E won the Money In The Bank ladder match in July .