{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "597986499",
    "entityType": "User",
    "nonce": "0xa65ef5b53426b7f53edc40879a0b00861511acde20c27eb635040289b51de40e",
    "signature": "0x314381291981c2228c6f77566c5d0c055cd7d93949771f090b399d174b7b6b7606c61dbf062879d580bc77715f8f59484930f9ba4ae4aa2e897a1790c35d600b1b",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}