UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tug9SHSkRB2OhJJOb01bW1v5b9irj667lyBpFInzfdA=' 
WHERE 
  key_id = '93bb929dc242a5960c8d559cac7efbf1d44f633cdffae9e13fd99e7545cdaf3b' 
  AND (
    token = 'tug9SHSkRB2OhJJOb01bW1v5b9irj667lyBpFInzfdA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )