Filebeat deal json logs

I have a log like this:
{"log":"13/May/2020:10:09:34 +0000 10.244.5.1 GET /storeback/companyInfo/getCompanyInfoAndQualificationToInfo HTTP/1.1 200 9349 0.043","stream":"stdout","time":"2020-05-13T10:09:34.921821872Z"}
I just want the "log" part :
"13/May/2020:10:09:34 +0000 10.244.5.1 GET /storeback/companyInfo/getCompanyInfoAndQualificationToInfo HTTP/1.1 200 9349 0.043"

can filebeat do it?