{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "465531556",
    "entityType": "User",
    "nonce": "0x12bf7e519208b834b3fd2d8f1eb19c3c48a28738c4db0f45acadcdd0ea9547c9",
    "signature": "0x7f2ecb4e582bcf311ab0201218746f73e5d228572a668f6999b3193a1b625f822015c6a5a26e7d4a35326ab9375da39e40b97744b9c7585149c767303125c8a81b",
    "signer": "0x1481F49fD2f6524D8CDC0089b13bbd2e6E9106F4",
    "userId": "231243"
  }
}