UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '6AysovPMPK79KMonADTr9gNU0ti5pSxPhX14K04TPhE=' 
WHERE 
  key_id = '680314386427eeb5b3be46ae51fa6e1570fae0df22a76814d52b9cc482af9995' 
  AND (
    token = '6AysovPMPK79KMonADTr9gNU0ti5pSxPhX14K04TPhE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )