{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51879",
    "entityType": "User",
    "nonce": "0x59fc5483a389c79341c06f7092fb860881372d1d726090b29dc6145cb4838ad5",
    "signature": "0xebf01d5752aa82619b4a3ba6a4259eabd7b5339c079320a93078f4c89363926d451337b33effe267b21f3c90d2fcc44db49551e889e6480055d7750c79ea39af1b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}