[
{
"c": "1",
"d": {
"k": 1641376438005,
"x": [
{
"key1": "RRR",
"key2": "1"
},
{
"key1": "LAK",
"key2": "2"
},
{
"key1": "RAM",
"key2": "3"
}
]
}
}
]
for z in mas:
element = z['d']['x'][0]['key1']
print(element)