{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xcbbddc71c0fb9a08706ca8be36189d1ccdd8b57a6c2de51000f75d5415bbda86",
    "signature": "0x2160f790c941b6e0fa590c9a217fc281d490befd9e68ea7fc21eb45f7f3c169b541ab54436cb39c2c2893bc0ee7ba51a1a445ce7261a86b81082804be8ba7b301c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}