{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "839046071",
    "entityType": "User",
    "nonce": "0x7d7b1a3ae92c0e525b54bcb16d9826d9bc03195140d2da5b87e7bdd2bb29c264",
    "signature": "0x81efd1931932cc5029ef55fe005425b98dc33cc12c0e586194f39756b5e9c0733654fd9a73c6eacd39ca1c6557e0dca92c7fafee8c07eb40e1a681dd25649ce01b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}