{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593082",
    "entityType": "User",
    "nonce": "0x391984c7e063565ccf8d644c3e727549f6d5857a4f6d462b75291ca6ea7d4444",
    "signature": "0xefbe631287bfb271efd42fdbafa079a035e233a281d602418d3d2fce39545470559eafcb63dd63a887f5c08bfec6d21268329a456594e0227eb8c99e9664b8821c",
    "signer": "0x428df7C89b250770b2C984e1AFc3524CfB11738c",
    "userId": "410571818"
  }
}