UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tx3xvdZpyobat71+M9vEs8mxtsrQ2D0kdGU7DWehvY0=' 
WHERE 
  key_id = '15e240702965e4f6a84407185baa6f77852f9ace2817b683d412be4e965cda08' 
  AND (
    token = 'tx3xvdZpyobat71+M9vEs8mxtsrQ2D0kdGU7DWehvY0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )