{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "727946613",
    "entityType": "User",
    "nonce": "0x56d83be7f2a3a6b97dbd22b8cf337521561b5ec599776295f2f62711ee13fc1a",
    "signature": "0xcdadbc1bc362067b1ad294d46f0624013e3f158d68536573b76fcefac3df1f5721b5ace4ce56c71d17d3de18510a97e6e06af915c63eaa03f9d62d3f38bfdc071b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}