UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PldRJXiCEni0WIp14C0lyiv1s3seKyvQLgZ6TJBuOsc=' 
WHERE 
  key_id = '50cb34bd3ce9ecb74afa59d75c269a85d610950655ba2327c7b0a48d3eb09f34' 
  AND (
    token = 'PldRJXiCEni0WIp14C0lyiv1s3seKyvQLgZ6TJBuOsc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )