How to Generate a Signature for BlockCypher BTC Transactions in PHP 8.2.12 with Laravel 10?

I am currently using BlockCypher's transaction APIs to transfer cryptocurrency. While the Transaction Create API works fine, the Transaction Send API requires a signature. Following the API documentation, I attempted to use their PHP library, which relies on the bitwasp/bitcoin package for the sign function. However, I am using PHP 8.2.12 and Laravel 10, and the required package is not compatible with these versions. Downgrading my PHP and Composer versions might negatively impact my project. How can I solve this issue? Is there an alternative way to create a signature for a BlockCypher BTC transaction?