UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MU+1XDcNHfipjbeqtSqT1dCmsAU4bYS9Wd0OIepN+R0=' 
WHERE 
  key_id = '89b0c2f3c61113eb38ede13e8dea7b419e65a34c132ceb26dc590818d88edc52' 
  AND (
    token = 'MU+1XDcNHfipjbeqtSqT1dCmsAU4bYS9Wd0OIepN+R0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )