{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40651",
    "entityType": "User",
    "nonce": "0x1dbf685434af2c598bee86515798574556d9a1e68adee02054a93433dfec4bd1",
    "signature": "0x17d1e8eb0e84d8dcc1fcd60ba9f8f834deff91d814547f581da815e119b4c1381716d47c85d7e807c7fcc6bebec734f6d46a108e17cb8e404158ad5df92bf6b91c",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}