{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2885b1d1c69cbd178fc8648ea3a107bfde5ffe85d8f5d6452a06519f2d4d22ed",
    "signature": "0x0f6261800206e860248762db716e60bfa29e213a52c1320e0ed986563267db3f7d0149f182eed026e8e4596bf0652268db1f61bd5cda2ba9009729d5e03cc18d1b",
    "signer": "0x8a42274408C388c1e10cBA30c85e55DB26A031B8",
    "userId": "863229353"
  }
}