{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16346",
    "entityType": "User",
    "nonce": "0x1dfb0d1830c1cbed9b9080616f8a0311f840cb33dcf6a3d91f2ab282c1ff0d77",
    "signature": "0x0789c3d6bbf15824c6d7a70a056b5cb34f4d56bd6ef98950a8a3502393244ce475653a80d9fd1ee52a112ecc7c4f732b1b9e0211b5e7c27c0c17504fe99a3fc71b",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}