UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Po8Kk6QZwJkT/LjoKRi312zUn21qBbz1e2Sh3Fi/5EQ=' 
WHERE 
  key_id = '53badfa2ec796a292f2459bf7f341a0a1958a1661fa44e8b04a8d70449f04638' 
  AND (
    token = 'Po8Kk6QZwJkT/LjoKRi312zUn21qBbz1e2Sh3Fi/5EQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )