{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831760216",
    "entityType": "User",
    "nonce": "0xc66ed3fb7fb22585b8fc9eee86d03cf44bcab0a65b09440f6bb060ad069f4233",
    "signature": "0x51dfe6556a4b0fb72da119842bc980ef1e59a4380819341d47cd9a4efa77c9e64c43084410c4bd2683e5474e0532d7d7f6714b28718165016d8710ded9dbefeb1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}