UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b28Ei5dsd7L9gv+u7rV/aa/+VFZ3NgmEHqryjhBkUJc=' 
WHERE 
  key_id = '621aabad6e89934f5dcd84e756963d7b678c03eeebeef5add0e23a26c258eb35' 
  AND (
    token = 'b28Ei5dsd7L9gv+u7rV/aa/+VFZ3NgmEHqryjhBkUJc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )