array(3) {
  ["error"]=>
  array(1) {
    [".tag"]=>
    string(5) "other"
  }
  ["error_summary"]=>
  string(9) "other/..."
  ["user_message"]=>
  array(2) {
    ["locale"]=>
    string(2) "en"
    ["text"]=>
    string(81) "{"error":{".tag":"expired_access_token"},"error_summary":"expired_access_token/"}"
  }
}