UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5VMf1sRSCKetJ6CgjaFpetzZ4j0Ye0DEmUysphJODcM=' 
WHERE 
  key_id = '7c8ca8b02e2adc4592d5dcae91af0cd8e48e2d9ad7703a12e58b872a137f7413' 
  AND (
    token = '5VMf1sRSCKetJ6CgjaFpetzZ4j0Ye0DEmUysphJODcM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )