UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2O//kev4iNDIawYAtyykRpLm3NydewxPh0fyxq4bKpY=' 
WHERE 
  key_id = '4151df9e3015aba0556e02076e3a519414b38b994b72afd281dc66a27d9baf46' 
  AND (
    token = '2O//kev4iNDIawYAtyykRpLm3NydewxPh0fyxq4bKpY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )