UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'M4N6wTPrFXjgMRYJS56+x5tu64vVIxr1PZgq8eP1axE=' 
WHERE 
  key_id = 'e68a95e04a48e51b3777d3f260b63d0fd2c86584d4eb3b2a856dedd5218219f6' 
  AND (
    token = 'M4N6wTPrFXjgMRYJS56+x5tu64vVIxr1PZgq8eP1axE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )