{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384670",
    "entityType": "User",
    "nonce": "0x391fd3c3f060bb1141046cb6fdc2a0a6181d5593a733317f6cb6ecfac7a23360",
    "signature": "0x68e0f3808fa5c00dce5e26f8f90e09300440b43afb373af39f1c342bd69acca1010dcc4f374ae6e910a85c02740a40d5fe6cecf0d3f4724b9e59bc6845c43a7f1b",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}