UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2X26vp7hTiewnDgTD3jbROzIFw0HTSF2an18mxQR2t0=' 
WHERE 
  key_id = '181e50432572b3740a0f2a24af717697c443602672f30d7032d7f339ed5f8d8c' 
  AND (
    token = '2X26vp7hTiewnDgTD3jbROzIFw0HTSF2an18mxQR2t0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )