Function nitroattest::na_ad_get_verified_payload_as_json

#[no_mangle]pub unsafe extern "C" fn na_ad_get_verified_payload_as_json(
    ad_blob_ptr: *const u8, 
    len: usize, 
    root_cert_der_ptr: *const u8, 
    root_cert_der_len: usize, 
    unix_ts_sec: u64
) -> *const c_char