diff --git a/data/map.mbtiles b/data/map.mbtiles
index fbc1fa3..b1a0bbc 100644
Binary files a/data/map.mbtiles and b/data/map.mbtiles differ
diff --git a/internal/dtos/request/snapshot.go b/internal/dtos/request/snapshot.go
new file mode 100644
index 0000000..bfe45df
--- /dev/null
+++ b/internal/dtos/request/snapshot.go
@@ -0,0 +1,111 @@
+package request
+
+import "encoding/json"
+
+type CommitSnapshot struct {
+	SchemaVersion           int                      `json:"schema_version" validate:"required"`
+	Section                 SectionRef               `json:"section" validate:"required"`
+	EditorFeatureCollection *FeatureCollection       `json:"editor_feature_collection,omitempty" validate:"omitempty"`
+	Entities                []EntitySnapshot         `json:"entities,omitempty" validate:"omitempty,dive"`
+	Geometries              []GeometrySnapshot       `json:"geometries,omitempty" validate:"omitempty,dive"`
+	LinkScopes              []LinkScopeSnapshot      `json:"link_scopes,omitempty" validate:"omitempty,dive"`
+	Wikis                   []WikiSnapshot           `json:"wikis,omitempty" validate:"omitempty,dive"`
+	EntityWikis             []EntityWikiLinkSnapshot `json:"entity_wikis,omitempty" validate:"omitempty,dive"`
+}
+
+
+type SectionRef struct {
+	ID    string `json:"id" validate:"required"`
+	Title string `json:"title" validate:"required"`
+}
+
+type FeatureCollection struct {
+	Type     string    `json:"type" validate:"required,eq=FeatureCollection"`
+	Features []Feature `json:"features" validate:"required,dive"`
+}
+
+type Feature struct {
+	Type       string            `json:"type" validate:"required,eq=Feature"`
+	Properties FeatureProperties `json:"properties" validate:"required"`
+	Geometry   json.RawMessage   `json:"geometry" validate:"required"` 
+}
+
+type FeatureProperties struct {
+	ID           any      `json:"id" validate:"required"`
+	Type         string   `json:"type,omitempty"`
+	TimeStart    *float64 `json:"time_start,omitempty"`
+	TimeEnd      *float64 `json:"time_end,omitempty"`
+	Binding      []string `json:"binding,omitempty"`
+	EntityID     string   `json:"entity_id,omitempty"`
+	EntityIDs    []string `json:"entity_ids,omitempty"`
+	EntityName   string   `json:"entity_name,omitempty"`
+	EntityNames  []string `json:"entity_names,omitempty"`
+	EntityTypeID string   `json:"entity_type_id,omitempty"`
+}
+
+type EntitySnapshot struct {
+	ID            string `json:"id" validate:"required"`
+	Source        string `json:"source,omitempty" validate:"omitempty,oneof=inline ref"`
+	Ref           *Ref   `json:"ref,omitempty" validate:"omitempty"`
+	Operation     string `json:"operation,omitempty" validate:"omitempty,oneof=create update delete reference"`
+	Name          string `json:"name,omitempty"`
+	Slug          string `json:"slug,omitempty"`
+	Description   string `json:"description,omitempty"`
+	TypeID        string `json:"type_id,omitempty"`
+	Status        *int   `json:"status,omitempty" validate:"omitempty,oneof=0 1"`
+	IsDeleted     *int   `json:"is_deleted,omitempty" validate:"omitempty,oneof=0 1"`
+	BaseUpdatedAt string `json:"base_updated_at,omitempty"`
+	BaseHash      string `json:"base_hash,omitempty"`
+}
+
+type GeometrySnapshot struct {
+	ID            string          `json:"id" validate:"required"`
+	Source        string          `json:"source,omitempty" validate:"omitempty,oneof=inline ref"`
+	Ref           *Ref            `json:"ref,omitempty" validate:"omitempty"`
+	Operation     string          `json:"operation,omitempty" validate:"omitempty,oneof=create update delete reference"`
+	Type          string          `json:"type,omitempty"`
+	DrawGeometry  json.RawMessage `json:"draw_geometry,omitempty"`
+	Binding       []string        `json:"binding,omitempty"`
+	TimeStart     *float64        `json:"time_start,omitempty"`
+	TimeEnd       *float64        `json:"time_end,omitempty"`
+	BBox          *BBox           `json:"bbox,omitempty" validate:"omitempty"`
+	IsDeleted     *int            `json:"is_deleted,omitempty" validate:"omitempty,oneof=0 1"`
+	BaseUpdatedAt string          `json:"base_updated_at,omitempty"`
+	BaseHash      string          `json:"base_hash,omitempty"`
+}
+
+type BBox struct {
+	MinLng float64 `json:"min_lng" validate:"required"`
+	MinLat float64 `json:"min_lat" validate:"required"`
+	MaxLng float64 `json:"max_lng" validate:"required"`
+	MaxLat float64 `json:"max_lat" validate:"required"`
+}
+
+type LinkScopeSnapshot struct {
+	GeometryID    string   `json:"geometry_id" validate:"required"`
+	Operation     string   `json:"operation" validate:"required,eq=reference"` // Theo doc chỉ có "reference"
+	EntityIDs     []string `json:"entity_ids" validate:"required,min=1"`        // Đã link thì phải có ít nhất 1 entity
+	BaseLinksHash string   `json:"base_links_hash,omitempty"`
+}
+
+type WikiSnapshot struct {
+	ID        string          `json:"id" validate:"required"`
+	Source    string          `json:"source,omitempty" validate:"omitempty,oneof=inline ref"`
+	Ref       *Ref            `json:"ref,omitempty" validate:"omitempty"`
+	Operation string          `json:"operation,omitempty" validate:"omitempty,oneof=create update delete reference"`
+	Title     string          `json:"title" validate:"required"`
+	Doc       json.RawMessage `json:"doc,omitempty"`
+	UpdatedAt string          `json:"updated_at,omitempty"`
+	IsDeleted *int            `json:"is_deleted,omitempty" validate:"omitempty,oneof=0 1"`
+}
+
+type EntityWikiLinkSnapshot struct {
+	EntityID  string `json:"entity_id" validate:"required"`
+	WikiID    string `json:"wiki_id" validate:"required"`
+	Operation string `json:"operation,omitempty" validate:"omitempty,oneof=reference delete"`
+	IsDeleted *int   `json:"is_deleted,omitempty" validate:"omitempty,oneof=0 1"`
+}
+
+type Ref struct {
+	ID string `json:"id" validate:"required"`
+}
\ No newline at end of file