Johnson is coming off a poor performance against Christian Hammer in December, and lost a wide unanimous decision to Tyson Fury when the pair met in Belfast, back in December 2012.
Chisora shares the bill with Fury, who faces Argentinian Gonzalo Omar Basile.
Promoter Frank Warren ‘would like’ Fury-Chisora to be a WBO title eliminator at West Ham’s Upton Park stadium.
Fury had some stern words for David Haye, who twice pulled out of fights against him.
“He's a f**king b**ch and he wouldn’t fight,” stated Fury.