UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6E9zj4UquZNfkYyfHd635HfOG8IOQ+3chl7gQe3YHSc=' 
WHERE 
  key_id = '592b874d0679dc330da61b83c207f873de385f0162b22afc868783bd6ba056d8' 
  AND (
    token = '6E9zj4UquZNfkYyfHd635HfOG8IOQ+3chl7gQe3YHSc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )