{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171594868",
    "entityType": "User",
    "nonce": "0x9ab38ae23c3e3b45a038a219bf3b43349da4f426ac42938e69fa90cf8b6d913e",
    "signature": "0x0260a56ca12b824ef993dd0220cf7e3a0cb18c30bfb1a269396e4596776aafd01871bcbcd17a008b9ab5594b069161aca643d87c4e9db76651f8d9f14d22d7391c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}