Microsoft SDE2 offer received

Designation:L62 Base 39.90 Bonus: 20% avg I can get 10% I.e. 4L Joining bonus: 3L Rsu: 90k dollars Annual stock award: eligible

Current CTC: 50LPA no bonus no stocks service based company.

My background: Firmware dev with 7.9 yrs of experience in semiconductors industry.

Any review point, can I expect base salary more? What points I can negotiate any idea? Need help guys.