BLE Commands
How do I find the appropriate values for BLE codes to work as scene switches?

I have something like this:
`"blueMsg": "{\n  \"bleCmd\" : \"owABBQICKQAAAAYQAf\\/\\/AAIBAZs=,owGDAAEGAKdTC8IL8LAA\\/20A\\/z0=,owIAEOzLABIA+QAA\\/AAaUwAAAck=,owMSAVsAAwIBAQIAAQH\\/\\/\\/8UAAA=,o\\/\\/8EAD8AAAAAAAAAAAAAAAAAEw=\",\n  \"modeCmd\" : \"MwUEkgEAAAAAAAAAAAAAAAAAAKE=\",\n  \"secretCodeCmd\" : \"M7JuCso4MjQecgAAAAAAAAAAAH0=\",\n  \"type\" : \"diy\",\n  \"switchCmd\" : \"MwEBAAAAAAAAAAAAAAAAAAAAADM=\"\n}"`

But, nothing I try seems to work right.