UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Dg5bz7GFAkXzPjJacCEgtkJvuoXSkYsluozBoccTHOg=' 
WHERE 
  key_id = '2843ae4209e76d3e268144b6320c900a8ee7484708aa1a1a40d70a5239c52c38' 
  AND (
    token = 'Dg5bz7GFAkXzPjJacCEgtkJvuoXSkYsluozBoccTHOg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )