{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x20a8fdb18c30062afdc11f78b416ae72adf4afa4511510555cffe4da73d82dbd",
    "signature": "0x6f942efa69b0796e726ccb9905508ec3252e17ea2952b8a382331f468605856710fa49f905277b3c70d78e86262c5bbdba32dc75eb5944166cf05d65839f01551c",
    "signer": "0x48F3a854821033806Ac6dc1D35aC1ACf84AdcA51",
    "userId": "919790623"
  }
}