UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PxE8nmUxp4ZQ/km9LqCQEllYm7ey8MYKRIIrw/lhKyQ=' 
WHERE 
  key_id = 'e1494bd4cc5eaa7d1ae04d4bdd288a445a601649aa8ed2d7cbe987ce6514f0a3' 
  AND (
    token = 'PxE8nmUxp4ZQ/km9LqCQEllYm7ey8MYKRIIrw/lhKyQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )