LAYER 1: Soften gelatin in cold water. Mash cranberry sauce; add orange juice; beat, stirring until sauce melts. Stir in gelatin. Chill until slightly set. Add celery and nuts. Pour in 9 1/2" x 3" loaf pan. Chill firm.
LAYER 2: Soften gelatin in cold water; stir into broth. Chill until partially set. Blend mayonnaise, milk, salt and gelatin. Add chicken. Spoon over cranberry layer. Chill firm. Unmold and slice to serve.