UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dMexqhLO8V2DsC9zAbBFvxzag62rhDy1pLn9uqsuHAs=' 
WHERE 
  key_id = '8a6c3534a839c75c319d70bc92813173be239e8371e4c90d2bb7cde7f9049768' 
  AND (
    token = 'dMexqhLO8V2DsC9zAbBFvxzag62rhDy1pLn9uqsuHAs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )