{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa3267732a49aea4d765912c5d279a496f05335b33b021c231d888b4ef89d1fe4",
    "signature": "0xc65a33ede4350693f9d22089d8b3f5e3490d79d5be99229f33da559aaec2c9c725ebe9af8d37896ece0740fb5a6c93dd5df54b943f5c6dc5be292eedce1239621c",
    "signer": "0x991e915c869C48A444F8c0981013e7f82D52EAE5",
    "userId": "882295270"
  }
}