UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6zaFkkdbeqBDnP61sFy1ah3/KaqWDtf8HWVU9VxMteM=' 
WHERE 
  key_id = '4b91c3548ae4fe39577309bf4cb004b94fca501164fc60268385c3e1d0d1273f' 
  AND (
    token = '6zaFkkdbeqBDnP61sFy1ah3/KaqWDtf8HWVU9VxMteM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )