UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6WUzpFkLB3HgH/q/3PIcfVMNkf7IXQzy8y+FKtb0YcE=' 
WHERE 
  key_id = '2a70ce40af2d71354fa0cc47801efe2c84cb5eaa78b4bb6e9815e604306f2633' 
  AND (
    token = '6WUzpFkLB3HgH/q/3PIcfVMNkf7IXQzy8y+FKtb0YcE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )