how to ignore the first and last line in json file

[younes17]

Is there any way to ignore first and last line from my json files?

{
"hosts": {
"sv-1000.local": [
{
"Impact": "This may help attackers to defeat time based authentications schemes.",
"Network": "DEB304C5",
"ServiceandPort": "general (icmp)",
"ScanDate": "2020-01-02 00:36"
}
]
},
"network": {
"ScanCount": "21",
"ScanDate": "2020-01-02 00:36:18",
"ID": "DEB304C5",
"Parent": "C8F90FE8",
"Name": "-CAS"
}
}

[to4kawa]

props.conf

SEDCMD-ignore = s/(?ms){(.*)}/\1/