{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "740883",
    "entityType": "User",
    "nonce": "0x7960e8d962a30c6b0b3fcdeeb2f416396017dbc4dc5774598cc58d14111014e2",
    "signature": "0xe31586ac8640ff15977b5ece60a3cd634790efc9d9434a183d6eed16c9cccd8e29861fc459a793d3a09b004897df00d21082322162932fcc018ee9455ada7bff1b",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}