{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "402761699",
    "entityType": "User",
    "nonce": "0x2de0a71f677a00f4f3bfa38164820d2d517030ae486a8cccec15a9d495c7b4a4",
    "signature": "0x80e29d12217c94a4b87443836f55488b91ea14e6d4087ae3e9edf58d9708847a4439de5d90d631d88242cf21bf1cd96c852d9dc69b8ab983540b7ad084a5268a1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}