UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PQ+N6V0aDLdmMSYGmA0QSJvx6MAOXztPpGGG2XUG9hM=' 
WHERE 
  key_id = '1635ed68a6409c889029b53da4ddbd8809828cb2c7557cbc73baf064a65d3f3d' 
  AND (
    token = 'PQ+N6V0aDLdmMSYGmA0QSJvx6MAOXztPpGGG2XUG9hM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00039