diff --git a/src/database/migrations/20250308000000-first-schema-tables.js b/src/database/migrations/20250308000000-first-schema-tables.js
index 7506bb8..73cba27 100644
--- a/src/database/migrations/20250308000000-first-schema-tables.js
+++ b/src/database/migrations/20250308000000-first-schema-tables.js
@@ -320,6 +320,30 @@ module.exports = {
           },
           { transaction: t }
         ),
+        queryInterface.createTable(
+          'sign_up_challenge_created',
+          {
+            uuid: {
+              type: Sequelize.UUID,
+              allowNull: false,
+              unique: true,
+              primaryKey: true,
+            },
+            nostr_challenge_uuid: {
+              type: Sequelize.UUID,
+              allowNull: false,
+            },
+            app_invite_uuid: {
+              type: Sequelize.UUID,
+              allowNull: false,
+            },
+            created_at: {
+              type: Sequelize.DATE,
+              allowNull: false,
+            },
+          },
+          { transaction: t }
+        ),
       ]);
     });
   },
diff --git a/src/database/migrations/20250308000001-first-schema-fks.js b/src/database/migrations/20250308000001-first-schema-fks.js
index 54c86b6..573d238 100644
--- a/src/database/migrations/20250308000001-first-schema-fks.js
+++ b/src/database/migrations/20250308000001-first-schema-fks.js
@@ -63,6 +63,26 @@ module.exports = {
           onDelete: 'cascade',
           onUpdate: 'cascade',
         }),
+        queryInterface.addConstraint('sign_up_challenge_created', {
+          fields: ['nostr_challenge_uuid'],
+          type: 'foreign key',
+          references: {
+            table: 'nostr_challenge_created',
+            field: 'uuid',
+          },
+          onDelete: 'cascade',
+          onUpdate: 'cascade',
+        }),
+        queryInterface.addConstraint('sign_up_challenge_created', {
+          fields: ['app_invite_uuid'],
+          type: 'foreign key',
+          references: {
+            table: 'app_invite_created',
+            field: 'uuid',
+          },
+          onDelete: 'cascade',
+          onUpdate: 'cascade',
+        }),
       ]);
     });
   },