{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218904",
    "entityType": "User",
    "nonce": "0x47d8ca98f55005495cd6f4d1e767dc35164a8e4a0a7bef549b308c625cde0c7e",
    "signature": "0xdf12405caca2f46193c41762e9c0448b6b0d6e1598fbdd63815c166cc05f32a109972b768cc9db506b0df295078af02d23c65b292e366cff2b2b3823ac1042391c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}