UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sfk3m7mVDReaObYi96mgw+RUjDkF/oQgzDtQDRWnoo0=' 
WHERE 
  key_id = 'dc3c7cfc77c4b54a8adc39e2bc93f23eec912afe49b254b0bd3673665a798a09' 
  AND (
    token = 'sfk3m7mVDReaObYi96mgw+RUjDkF/oQgzDtQDRWnoo0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00038