{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xdaa0d476da28b092d7405642a6882ae7838c077242fd1d0159a24b2b281a5db7",
    "signature": "0x928c9c8a694470d2c95b090dfddeb8b0ff8d3b2c9a50199a8ba713ee7344c8e30be4276f687a7ae17d4272b2738f5bb3aa10df551394091d6064648f48f87e061b",
    "signer": "0xD131D85dCb45420123612F0E81b342109e2B1193",
    "userId": "91368423"
  }
}