{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409512835",
    "entityType": "User",
    "nonce": "0xb0856db79fbe81f2271f31d339f9c61c63fd501cc6bfd99b188ef9da24636ce8",
    "signature": "0x5499c21924e47907a4aed7be7319001ea9637cf89f20447de054cc1fbb384d6840739da5ca9d85e30121aadc55a3b90f4bd07d4a25a655565909a431a077bc331b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}