diff --git a/src/models/UserAction.ts b/src/models/UserAction.ts
new file mode 100644
index 0000000..7f6dc43
--- /dev/null
+++ b/src/models/UserAction.ts
@@ -0,0 +1,48 @@
+import { PrimaryGeneratedColumn, Column, OneToMany, Entity } from "typeorm";
+import {
+  IsInt,
+  IsNotEmpty,
+  IsOptional,
+  IsString,
+} from "class-validator";
+
+/**
+ * Defines the UserAction interface.
+*/
+@Entity()
+export class UserAction {
+  /**
+   * Autogenerated unique id (primary key).
+   */
+  @PrimaryGeneratedColumn()
+  @IsOptional()
+  @IsInt()
+  id: number;
+
+  // TODO:
+  // user: relation
+
+  /**
+   * The actions's target (e.g. Track#2)
+   */
+  @Column()
+  @IsNotEmpty()
+  @IsString()
+  target: string;
+
+  /**
+   * The actions's action (e.g. UPDATE)
+   */
+  @Column()
+  @IsNotEmpty()
+  @IsString()
+  action: string;
+
+  /**
+   * The description of change (before-> after; e.g. distance:15->17)
+   */
+  @Column()
+  @IsOptional()
+  @IsString()
+  changed: string;
+}
\ No newline at end of file