UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CxBBC8btzxD89xTKcMWWvQLMChu4NZfAHEI7bsHxm5Q=' 
WHERE 
  key_id = '18b12838a56c66d6c6f31075d328b06813cd336f9b740406a6da53ed2fc67026' 
  AND (
    token = 'CxBBC8btzxD89xTKcMWWvQLMChu4NZfAHEI7bsHxm5Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )