UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nr8Iv4U0vyQ9iSJiBJIBwOzQUQiUgTe51DWXOF/GvfA=' 
WHERE 
  key_id = '50f710513ec4e689cea217c59ff687587fcd2df008eda10a10ebc43287e7a8ec' 
  AND (
    token = 'nr8Iv4U0vyQ9iSJiBJIBwOzQUQiUgTe51DWXOF/GvfA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )