UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ceFEL/EVr+3NsC5VZP5UTACrS2RiAsbnPbaSeVb/GNU=' 
WHERE 
  key_id = 'bf6f21b098f4430c4e6c9dec7886fdcd4171b0c00c4da49c07fa9c6fabf39d57' 
  AND (
    token = 'ceFEL/EVr+3NsC5VZP5UTACrS2RiAsbnPbaSeVb/GNU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )