{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230757098",
    "entityType": "User",
    "nonce": "0x50332cbf99b878a826f7e55e4aafb64850db9b498b210d54c36aed0688524559",
    "signature": "0xcb82bebb098f529c520909ed7d6b31a8e7d20dc2370e218ffbf6d05653a19f8b3c86e2f750f81e70ba1055f660e4f7b7406adde0efc000c79f69fdb903b697831b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}