{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x189c323bc4056992c0742bd299bdc7e8a9620e0756ac083b9ef23a1f800acbde",
    "signature": "0x180df292a01bf64aeebc7b2c21338aa1db0f8f823d8b8a302e21e4a1b287b2063cd6b0da5dcc2783a57f570209e674ac5ca1a28d210b2b328aae7535e2e45f4b1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}