Get characters after specific substring from string in Bash

I want to store a specific piece of a string as a variable in Bash.
I have this string:

data="
prop1:    v1
prop2:    v2
prop3:    v3
"

I use this code to select the v2 from the string:

subStr=$(echo "$data" | awk '"prop2:" {print $2}')

But the value of subStr is empty…

I tried using grep for searching prop2 and select the following characters but i did not get that working.

>Solution :

Match the first field against prop2: at the beginning of string:

$ subStr=$(awk '$1 ~ /^prop2:/ {print $2}' <<<"$data")
$ echo "$subStr"
v2