Not sure I understand what you're saying here:
[analyzed data regarding] subject lines to find the engagement ratio VS clicking ratio for 60 characters subject line and more than 70 characters subject line and the results speak themselves
What were the results? 70 characters is better than 60 characters?
Sorry for the lack of proper explanation. More than 70 characters' subject line is better. Write the conclusion/abstract of your message in the subject line.