UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Lx4XFbSOnpSreKZWmUSs9HWy9h5GBwJoWKSABc9M+oM=' 
WHERE 
  key_id = 'a0a659cf27309cef49d1df980c992bbb003e16f3c69c4aac55a54a95878cd475' 
  AND (
    token = 'Lx4XFbSOnpSreKZWmUSs9HWy9h5GBwJoWKSABc9M+oM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00021