{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43166",
    "entityType": "User",
    "nonce": "0x1a037f6c362fdb8e935342ff2400eb2e635f42ba6fa0d89fbbee5e139800d4a6",
    "signature": "0xcefa5e0261f8d80d577892ff71c1462b6b3998e0c2505cd9cfacfc1a84cd6e3f4cdcb81f2c2624f70db28aebec2ee58e259f8d685c5ffc060897e6b52b859fd91b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}