{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28121",
    "entityType": "User",
    "nonce": "0x22e073ed3e3e024e4c710a971a1b669a08d9fb09c5a8b4716c7eca54032ffab2",
    "signature": "0x554293a94bed3596e9044bc905cd238cc35069c8890b9b191f00bbef03811e205c71df3b6018226f7a02be3dcc156b7627b96fb73094a52e69d3d81a284b812d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}