UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NRLm0oyV6vW0PdDZFh32KPz2rdgwzW4SBRfa5LoYuJE=' 
WHERE 
  key_id = '1d8d68f23495631309be04ec7ff9d41174f9c7cc49a0e9bd1a1b53ac2545e0b6' 
  AND (
    token = 'NRLm0oyV6vW0PdDZFh32KPz2rdgwzW4SBRfa5LoYuJE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )