UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ix7yBBgoX6gUdjY3ILheEsaDwE8paIvnDlA7z9Vr0tE=' 
WHERE 
  key_id = '1675d899803f44177b3cc980661b94937af49f4a5d32716a2e78bfe205d2710d' 
  AND (
    token = 'Ix7yBBgoX6gUdjY3ILheEsaDwE8paIvnDlA7z9Vr0tE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )