UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zEPe5qUydvwPysHJXkvlKkD8sMii6WqWwt14m3ErYHg=' 
WHERE 
  key_id = '6d9f0e86b02f01ae364615c5241e803dd779f401c6d7ec024f73c645009e34b8' 
  AND (
    token = 'zEPe5qUydvwPysHJXkvlKkD8sMii6WqWwt14m3ErYHg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )