Please create a new TypeORM entity in the `services/control-plane/src/db/entity` directory. Please follow these guidelines:
- Use the @Entity decorator on the class
- Always include the generated UUID id column and the timestamp column
- Use class-validator decorators wherever appropriate on columns, for example @IsDate, @IsString, etc.
- Use TypeORM decorators to describe the column's data type, whether it is nullable, max length, and other important properties like cascade relationships
- For references to other tables, you should use ManyToMany, ManyToOne, or OneToMany where appropriate. Make sure to wrap other tables' types in Relation<...>.
- If you add a relation, make sure to update the entity file for that other table
- Once you are done, you should also add the entity to `services/control-plane/src/db/dataSource.ts`
- Lastly, run `cd services/control-plane && npm run typeorm migration:generate -- ./src/db/migrations/<ENTITY_NAME>` in order to generate a migration

If you need to view any existing tables, you can look into the contents of `services/control-plane/src/db/entity` and read any of the relevant files.

This is an example entity file:
```OrgProxyKey.ts
import {
  Column,
  CreateDateColumn,
  Entity,
  ManyToOne,
  PrimaryColumn,
  type Relation,
} from "typeorm";

import {
  IsDate,
  IsOptional,
  IsString,
  IsUUID,
  Length,
  ValidateNested,
} from "class-validator";
import { Organization } from "../Organization.js";

@Entity()
export class OrgProxyKey {
  @IsUUID(4)
  @PrimaryColumn("uuid", { generated: "uuid" })
  id: string;

  @IsDate()
  @CreateDateColumn()
  timestamp: Date;

  @IsString()
  @Length(64, 64)
  @Column({ unique: true, length: 64 })
  key: string;

  @IsOptional()
  @IsDate()
  @Column({ nullable: true })
  lastConnected: Date;

  @ValidateNested()
  @ManyToOne(() => Organization, (org) => org.proxyKeys)
  organization: Relation<Organization>;
}
```

Please create an entity with the following description: