UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RvfjxlJMlCIdGxLoXRYeiqd1sf/ujKNu5exH9bd+fUs=' 
WHERE 
  key_id = '594d4cfe5cd47ea8da880b401749948894e6b1844cf687edc69accb7119fbd34' 
  AND (
    token = 'RvfjxlJMlCIdGxLoXRYeiqd1sf/ujKNu5exH9bd+fUs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )