UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BlKuSZPHu3d36DlZzXYdp4e7o1QQwkcuTUrcSIKdUxQ=' 
WHERE 
  key_id = '4e4f3733262e88507f91d52bf136cd15e6fe90050ec011bcaba62422b6113718' 
  AND (
    token = 'BlKuSZPHu3d36DlZzXYdp4e7o1QQwkcuTUrcSIKdUxQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00027