{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04a7c3f6ae051036e40f1567616355d91b729ba5bc6d7ba11c20792fa9c0708f",
    "signature": "0x1d39d8eee227e9d8030dc419cf200e33107a9b24de03215055098323225117830529e424cabd89f8f190873cfd3a01f75b5d26814baee1928eff91bcf5f499fb1c",
    "signer": "0x2D155bAe157870c51e1AAf91626dFcF9152866ce",
    "userId": "528257612"
  }
}