curl --location --request POST '/kms2/1.0.0/get_certificate'{
"status": "string",
"message": "string",
"mode": "string",
"certificate": {
"issuer": "string",
"serialnumber": "string",
"notbefore": "string",
"notafter": "string",
"public_key": "string"
},
"serialnumber": "string",
"request_id": 0
}