{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0x4ac99e5d4e0ec8056de8fb233cd9e1360c38a6c5bd5e9bd2b12657a5d8c988bb",
    "signature": "0xb0ed1b61cb8415fe5f5243491c45aeca82c6ff35d06f06cd15070ce15429033c45879aa474b88ed63c3b08326665ea54f3829a704cf6191cd5625841a59d235e1c",
    "signer": "0x12EaF77464824447aA995e75Dd707B3e5246be9C",
    "userId": "409175645"
  }
}