{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227069",
    "entityType": "User",
    "nonce": "0x135f5811d1a6d60e9cfe4bd316b94f2d87e376050987c1cfaf6855ae698b5b85",
    "signature": "0x346d574db4082142fa13bfeee41cbed161496c9df6911071575679a7f6c6fb2a1e4f768b4103da03cd14c42072907cb7f9bcd9d2324f081edf326e8c2468f0191c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}