UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VXTJ4aLUcT3LRzFeiTLSCMXmSla8lZIGtmTL1kodzDg=' 
WHERE 
  key_id = '21d2df2694e2dd5a005ae817ffb08b8bf89253ac871104a0be122f92a0d976ba' 
  AND (
    token = 'VXTJ4aLUcT3LRzFeiTLSCMXmSla8lZIGtmTL1kodzDg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )