diff --git a/release/go/spacemesh/v2alpha1/activation.pb.go b/release/go/spacemesh/v2alpha1/activation.pb.go
index 4033c609..a40f075a 100644
--- a/release/go/spacemesh/v2alpha1/activation.pb.go
+++ b/release/go/spacemesh/v2alpha1/activation.pb.go
@@ -28,13 +28,11 @@ type Activation struct {
 
 	Id           []byte `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	SmesherId    []byte `protobuf:"bytes,2,opt,name=smesher_id,json=smesherId,proto3" json:"smesher_id,omitempty"`
-	Signature    []byte `protobuf:"bytes,3,opt,name=signature,proto3" json:"signature,omitempty"`
-	PublishEpoch uint32 `protobuf:"varint,4,opt,name=publish_epoch,json=publishEpoch,proto3" json:"publish_epoch,omitempty"`
-	PreviousAtx  []byte `protobuf:"bytes,5,opt,name=previous_atx,json=previousAtx,proto3" json:"previous_atx,omitempty"`
-	Coinbase     string `protobuf:"bytes,6,opt,name=coinbase,proto3" json:"coinbase,omitempty"`
-	Weight       uint64 `protobuf:"varint,7,opt,name=weight,proto3" json:"weight,omitempty"`
-	Height       uint64 `protobuf:"varint,8,opt,name=height,proto3" json:"height,omitempty"`
-	NumUnits     uint32 `protobuf:"varint,9,opt,name=num_units,json=numUnits,proto3" json:"num_units,omitempty"` // number of effective PoST data commitment units
+	PublishEpoch uint32 `protobuf:"varint,3,opt,name=publish_epoch,json=publishEpoch,proto3" json:"publish_epoch,omitempty"`
+	Coinbase     string `protobuf:"bytes,4,opt,name=coinbase,proto3" json:"coinbase,omitempty"`
+	Weight       uint64 `protobuf:"varint,5,opt,name=weight,proto3" json:"weight,omitempty"`
+	Height       uint64 `protobuf:"varint,6,opt,name=height,proto3" json:"height,omitempty"`
+	NumUnits     uint32 `protobuf:"varint,7,opt,name=num_units,json=numUnits,proto3" json:"num_units,omitempty"` // number of effective PoST data commitment units
 }
 
 func (x *Activation) Reset() {
@@ -83,13 +81,6 @@ func (x *Activation) GetSmesherId() []byte {
 	return nil
 }
 
-func (x *Activation) GetSignature() []byte {
-	if x != nil {
-		return x.Signature
-	}
-	return nil
-}
-
 func (x *Activation) GetPublishEpoch() uint32 {
 	if x != nil {
 		return x.PublishEpoch
@@ -97,13 +88,6 @@ func (x *Activation) GetPublishEpoch() uint32 {
 	return 0
 }
 
-func (x *Activation) GetPreviousAtx() []byte {
-	if x != nil {
-		return x.PreviousAtx
-	}
-	return nil
-}
-
 func (x *Activation) GetCoinbase() string {
 	if x != nil {
 		return x.Coinbase
@@ -137,12 +121,12 @@ type ActivationStreamRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	StartEpoch uint32 `protobuf:"varint,1,opt,name=start_epoch,json=startEpoch,proto3" json:"start_epoch,omitempty"` // Apply `start_epoch/end_epoch` filters together with `coinbase` filter for better performance.
-	EndEpoch   uint32 `protobuf:"varint,2,opt,name=end_epoch,json=endEpoch,proto3" json:"end_epoch,omitempty"`
-	Id         []byte `protobuf:"bytes,3,opt,name=id,proto3" json:"id,omitempty"`
-	NodeId     []byte `protobuf:"bytes,4,opt,name=node_id,json=nodeId,proto3" json:"node_id,omitempty"`
-	Coinbase   string `protobuf:"bytes,5,opt,name=coinbase,proto3" json:"coinbase,omitempty"` // `coinbase` filter is not supported by database index and will result in sequential scan.
-	Watch      bool   `protobuf:"varint,6,opt,name=watch,proto3" json:"watch,omitempty"`
+	StartEpoch uint32   `protobuf:"varint,1,opt,name=start_epoch,json=startEpoch,proto3" json:"start_epoch,omitempty"` // Apply `start_epoch/end_epoch` filters together with `coinbase` filter for better performance.
+	EndEpoch   uint32   `protobuf:"varint,2,opt,name=end_epoch,json=endEpoch,proto3" json:"end_epoch,omitempty"`
+	Id         [][]byte `protobuf:"bytes,3,rep,name=id,proto3" json:"id,omitempty"`
+	SmesherId  [][]byte `protobuf:"bytes,4,rep,name=smesher_id,json=smesherId,proto3" json:"smesher_id,omitempty"`
+	Coinbase   string   `protobuf:"bytes,5,opt,name=coinbase,proto3" json:"coinbase,omitempty"` // `coinbase` filter is not supported by database index and will result in sequential scan.
+	Watch      bool     `protobuf:"varint,6,opt,name=watch,proto3" json:"watch,omitempty"`
 }
 
 func (x *ActivationStreamRequest) Reset() {
@@ -191,16 +175,16 @@ func (x *ActivationStreamRequest) GetEndEpoch() uint32 {
 	return 0
 }
 
-func (x *ActivationStreamRequest) GetId() []byte {
+func (x *ActivationStreamRequest) GetId() [][]byte {
 	if x != nil {
 		return x.Id
 	}
 	return nil
 }
 
-func (x *ActivationStreamRequest) GetNodeId() []byte {
+func (x *ActivationStreamRequest) GetSmesherId() [][]byte {
 	if x != nil {
-		return x.NodeId
+		return x.SmesherId
 	}
 	return nil
 }
@@ -471,36 +455,21 @@ var file_spacemesh_v2alpha1_activation_proto_rawDesc = []byte{
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@@ -509,61 +478,72 @@ var file_spacemesh_v2alpha1_activation_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/release/openapi/swagger/src/api.swagger.json b/release/openapi/swagger/src/api.swagger.json
index 2aed7325..353b8c23 100644
--- a/release/openapi/swagger/src/api.swagger.json
+++ b/release/openapi/swagger/src/api.swagger.json
@@ -503,18 +503,10 @@
           "format": "int64",
           "title": "number of effective PoST data commitment units"
         },
-        "previousAtx": {
-          "type": "string",
-          "format": "byte"
-        },
         "publishEpoch": {
           "type": "integer",
           "format": "int64"
         },
-        "signature": {
-          "type": "string",
-          "format": "byte"
-        },
         "smesherId": {
           "type": "string",
           "format": "byte"
diff --git a/spacemesh/v2alpha1/activation.proto b/spacemesh/v2alpha1/activation.proto
index f53f9f5f..a281d8c1 100644
--- a/spacemesh/v2alpha1/activation.proto
+++ b/spacemesh/v2alpha1/activation.proto
@@ -7,20 +7,18 @@ package spacemesh.v2alpha1;
 message Activation {
   bytes id = 1;
   bytes smesher_id = 2;
-  bytes signature = 3;
-  uint32 publish_epoch = 4;
-  bytes previous_atx = 5;
-  string coinbase = 6;
-  uint64 weight = 7;
-  uint64 height = 8;
-  uint32 num_units = 9; // number of effective PoST data commitment units
+  uint32 publish_epoch = 3;
+  string coinbase = 4;
+  uint64 weight = 5;
+  uint64 height = 6;
+  uint32 num_units = 7; // number of effective PoST data commitment units
 }
 
 message ActivationStreamRequest {
   uint32 start_epoch = 1; // Apply `start_epoch/end_epoch` filters together with `coinbase` filter for better performance.
   uint32 end_epoch = 2;
-  bytes id = 3;
-  bytes node_id = 4;
+  repeated bytes id = 3;
+  repeated bytes smesher_id = 4;
   string coinbase = 5; // `coinbase` filter is not supported by database index and will result in sequential scan.
   bool watch = 6;
 }