Blender shape keys animations import

Hi there,

Wondering if someone could help me, really struggling with this one, not been able to find any sort of resolution through tutorials Ive been looking at online,

basically I am wanting to import a shape keys animation from blender into unity and keep the animation that I have done in the blender timeline in unity, I have been importing this as an fbx file which transfers the blend keys successfully to unity though I can find no way to keep the timeline keyframes from blender,

I have been able to successfully do this with a character with a rig from blender to unity though I am having difficulties as explained here with a plain object with no rig attached,

Any help greatly appreciated,

Luke