UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ScBmQa/iAMjk6Rou9hPoE448VKvmxHtip1wz0AIgj4Q=' 
WHERE 
  key_id = '42a7be802a22c5d51435a2eee069f5603f2b91d2f31b4d19fb91de989be0ef21' 
  AND (
    token = 'ScBmQa/iAMjk6Rou9hPoE448VKvmxHtip1wz0AIgj4Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )