UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MxZm/B7+ehF0il0ag/oAQdFkVgZzbSP8ELyaIEZ9Ef4=' 
WHERE 
  key_id = '50779f712da211912fda8b110265d041cc7e12bd66fd07452842a7193abdb62d' 
  AND (
    token = 'MxZm/B7+ehF0il0ag/oAQdFkVgZzbSP8ELyaIEZ9Ef4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )