UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2OuQnjGy+DjyyrQn4aITQxpfkJuyiNw/2w7xpPRawY8=' 
WHERE 
  key_id = '877990891785c90e5a1cfa459b8dd8d3b94705c787dc73af526894b159f30004' 
  AND (
    token = '2OuQnjGy+DjyyrQn4aITQxpfkJuyiNw/2w7xpPRawY8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )