{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x65caff0cfa487bb952ae2830f7948271846636f85b8d1092ed2bc03492f79e4d",
    "signature": "0x43efb90ee6c2fedfd32dae87b5a61cd60889d22dfde2690732a373bc7643045009ca7602c9ca0434719b44ffe84f73b8205a869e448f24c7ec80472bd0b711131c",
    "signer": "0x7DfB12C89c72A8465F4cE92770aB05ec246D6f97",
    "userId": "141005349"
  }
}