UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PO4sJtWzICz3UrbhA/VDw1idZ7dqqL1y3LwZuC3KMjo=' 
WHERE 
  key_id = '51bfbb3cfa5db09b97369bca5428864592be7a79b33c30c4be75dc79216d1b75' 
  AND (
    token = 'PO4sJtWzICz3UrbhA/VDw1idZ7dqqL1y3LwZuC3KMjo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )