{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdaf3fafe28286edeeb92cca85af94901815312da02605556ff243741298e5159",
    "signature": "0xf8998973c23c961c164877991e12f8c9ec48e147d8a2299f76c6ec06c69a5c394b8eefb9d1682d52f683a559acc4eb85d06830a0229728f06d7f17e65eb1a4001b",
    "signer": "0x8920Fe702924683c9127730E9E4C65F58900049f",
    "userId": "561185078"
  }
}