UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Jx8DqAMAdASj2npUlliY2z11Olxhw5RkgWSvXGeQaAk=' 
WHERE 
  key_id = '7ebbb938f16cd76f96b52b469d35cee06815ce82a15179def43e7f36de7d75c0' 
  AND (
    token = 'Jx8DqAMAdASj2npUlliY2z11Olxhw5RkgWSvXGeQaAk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )