UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vpcgETvaHCkK3ygqKYRg608GSeU0crLhMD+RV0fsMDc=' 
WHERE 
  key_id = '81c0b5b9399881b6d58eb381f195cca3d6c08beadafc4dfc4f892f3b7141575c' 
  AND (
    token = 'vpcgETvaHCkK3ygqKYRg608GSeU0crLhMD+RV0fsMDc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )