Used private number to call. Left message about legal documents saying you have 2 hours to call that number

I got a call from 323-682-0513 left a messages that i refusee to sign. that i about legal documents saying you have 2 hours to call that number
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I got the same call. No criminal issues in my life or anything. Anyone know what it is about?

Received call as UNKNOWN number.  Left a rude and abrupt message for my girlfriend to call them regarding refusal to sign for legal documents and had 2 hrs to contact.  Called the number and went to a voicemail for some legal office.