diff --git a/src/ethereum/identity.rs b/src/ethereum/identity.rs
index 5e5db0d..5db515a 100644
--- a/src/ethereum/identity.rs
+++ b/src/ethereum/identity.rs
@@ -1,7 +1,10 @@
 use std::str::FromStr;
 
 use regex::Regex;
-use serde::Serialize;
+use serde::{
+    Deserialize, Deserializer, Serialize, Serializer,
+    de::Error as DeserializerError,
+};
 
 use crate::errors::ValidationError;
 use super::signatures::recover_address;
@@ -11,6 +14,7 @@ use super::utils::address_to_string;
 pub const ETHEREUM_EIP191_PROOF: &str = "ethereum-eip191-00";
 
 // https://github.com/w3c-ccg/did-pkh/blob/main/did-pkh-method-draft.md
+#[derive(Clone, Debug, PartialEq)]
 pub struct DidPkh {
     network_id: String,
     chain_id: String,
@@ -62,6 +66,24 @@ impl FromStr for DidPkh {
     }
 }
 
+impl Serialize for DidPkh {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where S: Serializer
+    {
+        let did_str = self.to_string();
+        serializer.serialize_str(&did_str)
+    }
+}
+
+impl<'de> Deserialize<'de> for DidPkh {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where D: Deserializer<'de>
+    {
+        let did_str: String = Deserialize::deserialize(deserializer)?;
+        did_str.parse().map_err(DeserializerError::custom)
+    }
+}
+
 // https://www.w3.org/TR/vc-data-model/#credential-subject
 #[derive(Serialize)]
 #[serde(rename_all = "camelCase")]
diff --git a/src/models/profiles/types.rs b/src/models/profiles/types.rs
index 96b6077..2157b0e 100644
--- a/src/models/profiles/types.rs
+++ b/src/models/profiles/types.rs
@@ -7,6 +7,7 @@ use crate::activitypub::actor::Actor;
 use crate::activitypub::views::get_actor_url;
 use crate::database::json_macro::{json_from_sql, json_to_sql};
 use crate::errors::ValidationError;
+use crate::ethereum::identity::DidPkh;
 use super::validators::{
     validate_username,
     validate_display_name,
@@ -14,6 +15,26 @@ use super::validators::{
     clean_extra_fields,
 };
 
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct IdentityProof {
+    pub issuer: DidPkh,
+    pub proof_type: String,
+    pub value: String,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct IdentityProofs(pub Vec<IdentityProof>);
+
+impl IdentityProofs {
+    pub fn into_inner(self) -> Vec<IdentityProof> {
+        let Self(identity_proofs) = self;
+        identity_proofs
+    }
+}
+
+json_from_sql!(IdentityProofs);
+json_to_sql!(IdentityProofs);
+
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct ExtraField {
     pub name: String,
@@ -178,6 +199,15 @@ mod tests {
 
     const INSTANCE_HOST: &str = "example.com";
 
+    #[test]
+    fn test_identity_proof_serialization() {
+        let json_data = r#"{"issuer":"did:pkh:eip155:1:0xb9c5714089478a327f09197987f16f9e5d936e8a","proof_type":"ethereum-eip191-00","value":"dbfe"}"#;
+        let proof: IdentityProof = serde_json::from_str(json_data).unwrap();
+        assert_eq!(proof.issuer.address, "0xb9c5714089478a327f09197987f16f9e5d936e8a");
+        let serialized = serde_json::to_string(&proof).unwrap();
+        assert_eq!(serialized, json_data);
+    }
+
     #[test]
     fn test_local_actor_address() {
         let local_profile = DbActorProfile {