#include <graphene/chain/witness_object.hpp>
 #include <graphene/chain/witness_schedule_object.hpp>
 #include <graphene/chain/worker_object.hpp>
+#include <graphene/chain/user_object.hpp>

 #include <graphene/chain/account_evaluator.hpp>
 #include <graphene/chain/asset_evaluator.hpp>
@@ -61,6 +62,7 @@
 #include <graphene/chain/withdraw_permission_evaluator.hpp>
 #include <graphene/chain/witness_evaluator.hpp>
 #include <graphene/chain/worker_evaluator.hpp>
+#include <graphene/chain/user_evaluator.hpp>

 #include <graphene/chain/protocol/fee_schedule.hpp>

@@ -126,6 +128,9 @@ const uint8_t witness_object::type_id;
 const uint8_t worker_object::space_id;
 const uint8_t worker_object::type_id;

+const uint8_t user_object::space_id;
+const uint8_t user_object::type_id;
+

 void database::initialize_evaluators()
 {
@@ -174,6 +179,9 @@ void database::initialize_evaluators()
    register_evaluator<asset_claim_fees_evaluator>();
    register_evaluator<asset_update_issuer_evaluator>();
    register_evaluator<asset_claim_pool_evaluator>();
+   register_evaluator<user_evaluator>();
 }

 void database::initialize_indexes()
@@ -218,8 +226,8 @@ void database::initialize_indexes()
    add_index< primary_index< special_authority_index                      > >();
    add_index< primary_index< buyback_index                                > >();
    add_index< primary_index<collateral_bid_index                          > >();
    add_index< primary_index< simple_index< fba_accumulator_object       > > >();
+   add_index< primary_index< user_index                                 > >();
 }

 void database::init_genesis(const genesis_state_type& genesis_state)