So I have created the cable.
What mososki wrote about the pin connections is true.
The micro usb pins are normally counted from right to left small side down, like this:
The required connection [utp pin->micro usb pin] is:
The good news is, that a common micro usb cable uses the same pins (1,2,3,5).
Therefore I did not have to solder a micro usb connector, connecting wire to wire is easier even when the wires used in usb cable are quite thin.