print(dict(map(lambda x: x.strip('" '), s.split(':')) for s in my_string.
    split('",')))
{'name': 'John', 'time': '1439155575925', 'sender': 'md-dgenie', 'text':
    'your dudegenie code is 6326. welcome to the world of dudegenie! your wish, my command!'
    }
convert strings into python dict