UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sjyaaBPWwb8RoEFU5saJUM7IPqQR30jeKxmtY7G6+KA=' 
WHERE 
  key_id = 'a8c90c11907802a1de4b8c9283370228092e64cbc3ee8936ffd777058c6cd7ee' 
  AND (
    token = 'sjyaaBPWwb8RoEFU5saJUM7IPqQR30jeKxmtY7G6+KA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )