diff --git a/services/identity/Cargo.lock b/services/identity/Cargo.lock
--- a/services/identity/Cargo.lock
+++ b/services/identity/Cargo.lock
@@ -171,6 +171,7 @@
  "num-integer",
  "num-traits",
  "serde",
+ "time",
  "winapi",
 ]
 
@@ -685,6 +686,7 @@
 version = "0.1.0"
 dependencies = [
  "argon2",
+ "chrono",
  "clap",
  "curve25519-dalek",
  "derive_more",
@@ -1521,6 +1523,16 @@
  "once_cell",
 ]
 
+[[package]]
+name = "time"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "tokio"
 version = "1.18.1"
diff --git a/services/identity/Cargo.toml b/services/identity/Cargo.toml
--- a/services/identity/Cargo.toml
+++ b/services/identity/Cargo.toml
@@ -19,6 +19,7 @@
 rusoto_dynamodb = "0.47.0"
 tracing = "0.1"
 tracing-subscriber = "0.3"
+chrono = "0.4.19"
 
 [build-dependencies]
 tonic-build = "0.6"
diff --git a/services/identity/src/database.rs b/services/identity/src/database.rs
--- a/services/identity/src/database.rs
+++ b/services/identity/src/database.rs
@@ -1,5 +1,6 @@
 use std::collections::HashMap;
 
+use chrono::{DateTime, Utc};
 use opaque_ke::{errors::ProtocolError, ServerRegistration};
 use rusoto_core::{Region, RusotoError};
 use rusoto_dynamodb::{
@@ -10,6 +11,18 @@
 
 use crate::opaque::Cipher;
 
+pub enum AuthType {
+  Password,
+  Wallet,
+}
+
+pub struct Token {
+  pub token: String,
+  pub created: Option<DateTime<Utc>>,
+  pub auth_type: Option<AuthType>,
+  pub valid: Option<bool>,
+}
+
 pub struct DatabaseClient {
   client: DynamoDbClient,
 }