UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n8P+Q36MzCXvjdmafz1DVSMBL1EiM8W2mputIK+8YPk=' 
WHERE 
  key_id = 'ad30d7c8c511a5781c623def19e4a03774ba15dbc95743b4285fec6d62f237b9' 
  AND (
    token = 'n8P+Q36MzCXvjdmafz1DVSMBL1EiM8W2mputIK+8YPk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )