how to solder ASP-122952-01(HSMC) by hand?

You might consider an industry standard LF solder profile. Or review the Samtec QTH series specification http://www.samtec.com/documents/webfiles/technical_library/qsh-qth.pdf

The problem is that you can't hand solder the ground strips under the component body. (Or you'll want to implement special PCB tricks like large through plated vias to heat it from the backside.) Conductive epoxy would be another option.

For prototype assembly, I always reflow solder components like this on a hot plate, in case of need in my kitchen.