{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "993206398",
    "entityType": "User",
    "nonce": "0x6e5476508d03187def02b8cf69ce5eee21c4ae7496be08754a16b4919a0d1931",
    "signature": "0x79a03bad048d69a21a419f220f5a9ac63cf0ddb89625e5c2438db1d8a0710e281742114bf6f53465408c76a77c567e6c8c7b11785e22cb5f9aa49139d63361ac1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}