"Unexpected identifier" error in Javascript when trying to parse JSON with escaped single quote

In my Laravel application, I am passing a JSON object to a Vue component:

<search v-bind:library="''"></search>

language_library(), for testing purposes, returns just one line:

{"you_dont_have_subscription":"You don\\'t have an active subscription right now."}

As you see, the single quote in the string is escaped. However, Vue throws this error:

[Vue warn]: Error compiling template:

invalid expression: Unexpected identifier in

    '{"you_dont_have_subscription":"You don\\'t have an active subscription right now."}'

  Raw expression: v-bind:library="'{"you_dont_have_subscription":"You don\\'t have an active subscription right now."}'"

I don't understand why the issue is happening. It's a single quote inside double quotes and it's escaped too (using addslashes() in the PHP back-end). How can I have a string that contains quotes in my JSON, if not like this?

If, instead of addslahes, I manually do something like this...

str_replace("'", "\'", $string)

...I still get the same error, with two backslashes in front of the quote in JSON.

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