I received the same message. There wasn't anything said to identify this person. They stated there was a legal case against you and that I would be getting arrested, "see you at the courthouse." I believe now that this is a phishing scam trying to get my personal information.
I just got a call and voicemail from this number a few minutes ago...it is scary but try to keep calm. If there was really a law suit against you then the attorney or office calling would leave legal office info, attorney's name, and stuff like that. Definitely get a call blocker and block them, and do not call this number back.
I received same message called back n it says he was an attorney n said he could only give info to this person so I said I am I asked what legal thing you claim to have n he said let me get the report n then hung up called back couple times got recording says they are not available n next was they are on the phone has someone else try n same thing how can people get away with this crap