{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7b61cfae01801a13e625e01b405e257dcbee7955af191c855b8e3020c3c7fbdc",
    "signature": "0x94df1f843a09ab464d7c056be89cb03dfe9c9196f1d277f85c2859663bb8c2ac5fddc2d1a492f3db569330332ad4200dd26f273aa48948c7e2cb1c9b25e1d19a1b",
    "signer": "0x4aAcD7111AAC42E77259a6cc44Bc93dc074A476B",
    "userId": "60730085"
  }
}