UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CLS6xSAkGj5FqPIxJ1hnXDfpwpbG7OP9W5sj9tJR4FA=' 
WHERE 
  key_id = 'b405a1d8c9beafa88b31eb69c47ff6b890725bdfdbf2a08da5805d2f8753f0b4' 
  AND (
    token = 'CLS6xSAkGj5FqPIxJ1hnXDfpwpbG7OP9W5sj9tJR4FA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )