UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Uyhoq+MOtKe+dKrkQNj8giTS3rcz5QTPY+Zy1Jy5MO0=' 
WHERE 
  key_id = '321e131e2c6d679fb986d7aef954af929e85a66974a16cff6c39d0c3e63ff96b' 
  AND (
    token = 'Uyhoq+MOtKe+dKrkQNj8giTS3rcz5QTPY+Zy1Jy5MO0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034