{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120471",
    "entityType": "User",
    "nonce": "0x77e5e5a8d756958f021bf22d09933a0f7d84e2af5c88b37d8d4743ad630fc2f5",
    "signature": "0x7a0551e27029c22e4cf24027d75b5c4bb80b4b6f97afa9dd7c02ad8705b576f0353056c0889afe758446d303e95c78fdc1003bf8a1a4347968a170c613be08a71c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}