{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf09431ed0837501706559b5e1b460b79fb50942bf13fbbd5bf80f843439e4234",
    "signature": "0x7bdd1038bc8e6c321a2fb7bbfe7224697331235fd0368f61c74aa4e4e8b23a843a46ceebda015a537e71e42f32d1229ac02f1db0d55d0b89eeec705117910bcf1b",
    "signer": "0xF5D40130c22Afe6AacFD1d6daF7A60552e486058",
    "userId": "919727692"
  }
}