UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kdnswhin31XsY6YPsyg5MemVyrqwdlSKc/7hgd1aoe4=' 
WHERE 
  key_id = '3fa1fd4626c7f198b94207728543f73bf96d733518c7af0a764fe5bfc75e2e89' 
  AND (
    token = 'kdnswhin31XsY6YPsyg5MemVyrqwdlSKc/7hgd1aoe4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )