{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "939721941",
    "entityType": "User",
    "nonce": "0x0c9e3a5e76186c7e4aa69213e53c5c2a4dfd868fbe29bbb53f48967c0f77d3d8",
    "signature": "0x4d40d5c706422fda3a97f9f57d7eaa5d5f8b5a66dcca7bf51ef3e40d68c482b315834e2bf34e7c8a1c34438a315cb7a40f9547e0c53e2462aeab5ce0b55069f71c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}