UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'i4xHytWUHjMrjsIxfmQI7TB7Ng6ezCrvon8JmPCUX7Y=' 
WHERE 
  key_id = '159d3fefb99b7bcce74d70c5cb367985be5811b883bbef120a49bfa6e3529f22' 
  AND (
    token = 'i4xHytWUHjMrjsIxfmQI7TB7Ng6ezCrvon8JmPCUX7Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00039