UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jfYyQhS35GHXZmNrKFOE09zPQSFcHRHbXjUu73EMNrc=' 
WHERE 
  key_id = '50dd9ec33a809b2a49f1b75bc30690a18e908cb2f0a524b50f786b4493319b34' 
  AND (
    token = 'jfYyQhS35GHXZmNrKFOE09zPQSFcHRHbXjUu73EMNrc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )