UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MFrWHXkZhcOAVRnk/2Y4cAkcI9WDB8x7EyzdqViABu0=' 
WHERE 
  key_id = '4d933484cdecdb47fc49096456d4010a0144295d5fb85453496c853b61040b2c' 
  AND (
    token = 'MFrWHXkZhcOAVRnk/2Y4cAkcI9WDB8x7EyzdqViABu0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )