UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Av2yPRSKCa4k08lJ244rZ6VyCz4yDOcrfKee2xFo1Fw=' 
WHERE 
  key_id = 'a121cc7d7735aef94766f0bdd8edde840dc314cb5358506688ce971be2563b21' 
  AND (
    token = 'Av2yPRSKCa4k08lJ244rZ6VyCz4yDOcrfKee2xFo1Fw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )