{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329177",
    "entityType": "User",
    "nonce": "0x0807f7d5e04ab19fff637c6f216eefcd1967912c38eac88767f9a30212327443",
    "signature": "0xdb9f004effdbaf760e1bda5579b20acc7016b9418bc979766d36b4642d7b3f7a528e73b6b01889ce23168ae78a725c2213842be371e6c56b1154ba1ff5703e091b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}