UPDATE 
  lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'L9C2A14weamrJIbUhrceEbzTP6KfCQEL9XelX7YVJ9s=' 
WHERE 
  key_id = '6134896b73daaaf23bc43d4e8b2b704bf6cbc8132326c93648a3b2f2f60f6b6c' 
  AND (
    token = 'L9C2A14weamrJIbUhrceEbzTP6KfCQEL9XelX7YVJ9s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )