UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'E1Wedd6zf59fs5WtZwrR3M53sjJVOKUie9VmDnaqE30=' 
WHERE 
  key_id = 'afbac4b9b5d95836b18aafab860b4ddbef524ddd52ab58d4303b01a33e61c476' 
  AND (
    token = 'E1Wedd6zf59fs5WtZwrR3M53sjJVOKUie9VmDnaqE30=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )