UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'JVx6ngWPC48f4+4+5QSNmRMxGwMxReSQgSoSUFxCyho=' 
WHERE 
  key_id = '7a4beb48aa4bb32b184bd607a0ac3ff9299c88f363f1b59bc09e9895722e23e2' 
  AND (
    token = 'JVx6ngWPC48f4+4+5QSNmRMxGwMxReSQgSoSUFxCyho=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )