Disable access log escaping

[Calin Don]

Hi,

I'm using a module which sets some data formated as json to a variable. I'm
trying to log this variable using the access log, but the content is
escaped. I'm getting something like {\x22foo\x22:\x22bar\x22} instead of
{'foo':'bar'}.

Is there a way to disable the escaping per access_log or per log_format?
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