Field Parse Issue

My customData.log file
{"Time": "2022-05-12T04:18:46.077", "HostName": "ABCDEFG", "Cat": "JOBLOG", "Severity": "Err", "SAF": 1, "SAFD": "RACF", "Name": "TEST", "JobName": "DBS1MSTR", "JobID": "JOB12345", "Rec": " 23:18:36 ERROR ID=DSNLIRTR000300000000000::172.31.206.121 FOR THREAD WITH"}