{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51425",
    "entityType": "User",
    "nonce": "0x285b3d7e4c9f1373abd7f2c1b8d957a48e8b63d6115147c7ac3bcb4b62e2d42f",
    "signature": "0x6c2233c97385ba913182662ff2e11f9f69da7711676acc4cb2769d92663c353476c4258bc26918bca8edb10ee5372bf422f6285106980599df1a5847be09e0601b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}