{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "960936323",
    "entityType": "User",
    "nonce": "0x7a93702e2a3084b01335b517016988e8d0b639bc2e3a800a50bbc97921696fed",
    "signature": "0xfa36b955b6927847c222ba72b976386599b4be6751044351fb20cd94c95d2be37134b37f314eda4881bf50f6c5ea732b9cd374b6a9271a2e7db2f228a0c82a2f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}