UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'O8Xh4Mv9xOLj88GJEO/4QzBXMg18c4X9PgX9ile4SYQ=' 
WHERE 
  key_id = 'dbd9dce98cc2ee90d44c0c86c0db31ac3b39457c2954562c0307758a502ec844' 
  AND (
    token = 'O8Xh4Mv9xOLj88GJEO/4QzBXMg18c4X9PgX9ile4SYQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )