UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RMV1AHsCN1UB26B+34oz8WP6nM40FCIyIO6JlckqtTQ=' 
WHERE 
  key_id = '51d8086f62ce210fa8d46c06c16291217d409f6949b21c0e05fd57d43d240cd1' 
  AND (
    token = 'RMV1AHsCN1UB26B+34oz8WP6nM40FCIyIO6JlckqtTQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )