{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0xdaf71bdc62503201ab27e74bc9631f66f08f6adb9cd480b0d9306d3dc2a3e059",
    "signature": "0xc86bc10542faa76d3b2030e58f169227284e1f36ea5d99c33fe60fa84cf4a69c6674d1cf5a1692a83120633e7c4fe867d4edbdb38f8bb694cc1efc99a165f32d1b",
    "signer": "0xe6155D2c22b3045b54a0E8F2CD4Ad64DFBcC2853",
    "userId": "993304290"
  }
}