Paid Content: Refactor to use get_token payload #33070
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Maybe we could also change it [here](https://github.com/Automattic/jetpack/blob/3b773377bff3362955827f58910fe43d2c2441eb/projects/plugins/jetpack/extensions/blocks/premium-content/login-button/login-button.php#L50)
Originally posted by @millerf in #33047 (comment)