Does "contractual consent" necessarily mean conscious opt-in? I'd suspect it can mean some some clause buried in contract document. Also, it's some party's in

Does "contractual consent" necessarily mean conscious opt-in? I'd suspect it can mean some some clause buried in contract document. Also, it's some party's interpretation of that clause, not what some other party understood it to mean. However, in this particular case, maybe most relevant is that I'd assume Docusign is facing a lot of corporate lawyers among its customers. So I'd guess the company can't get away with behaving like a stereotypical sketchy startup, towards its customers, and I'm sure Docusign has legal advisors who would tell them that if they ever needed to be told.