Load the secrets into a dictionary

var secretsManagerConfig = new AmazonSecretsManagerConfig()
{
    Profile = new Profile("MyProfile"),
    RegionEndpoint = RegionEndpoint.EUCentral1
};
var secretsManager = new AmazonSecretsManagerClient(secretsManagerConfig);

var request = new GetSecretValueRequest
{
    SecretId = "MySecretName"
};

var response = await secretsManager.GetSecretValueAsync(request);

var secret = JsonConvert.DeserializeObject<Dictionary<string, string>>(response.SecretString);

return secret;