UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a+e/zaGNt1oZDNPmIP+F8pBUDX+cPgXTwGqBWtMnX+c=' 
WHERE 
  key_id = '556e3e392834d6b8a42c4e223a07cbce4c5c7c740bdb4f61530e40c4532e2df8' 
  AND (
    token = 'a+e/zaGNt1oZDNPmIP+F8pBUDX+cPgXTwGqBWtMnX+c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )