{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406399634",
    "entityType": "User",
    "nonce": "0x55e712b4850d7322838820edb5631367fc91ff73d9eb23f43760e94bfb0e0c28",
    "signature": "0xb6efe0907a89fc0827d9e67b7fb55092b9e269022f895f7676dfba7df95612207e665ecf9d3c4017c2d39aad345cf362df46f1ac7614a5c4dab46e2d1990ed7a1b",
    "signer": "0xCCe749020E45FB96926be24f94FFA5f35e955e66",
    "userId": "810833505"
  }
}