UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Po7ar14ZrM7wylLUY4FrYmzSK6T6KPWEHZlcoGg+e/A=' 
WHERE 
  key_id = '37d181b8c2142dbdfb4569fc12b467e6928a283c772af7fd07fe54e505d4d2de' 
  AND (
    token = 'Po7ar14ZrM7wylLUY4FrYmzSK6T6KPWEHZlcoGg+e/A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )