UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r7Y5Kfm4hYoj5i/4uVQ6imF/PzaLcgNDMOpruJeC+fw=' 
WHERE 
  key_id = '386d44ca4ebe97444aeb23115ae80a6e7136b5d9673838d70b78854cdfe9e300' 
  AND (
    token = 'r7Y5Kfm4hYoj5i/4uVQ6imF/PzaLcgNDMOpruJeC+fw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )