{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe3e60828831a0c17be8305ec3a56204bc417d7007ac2c96f8106c15a75a26b59",
    "signature": "0x48841743617dba61553cdab85366b1d9907de1a6522a945756dbe617119ec1486df50a7ce6c91710001f6dc89a19b02eade4ce63f5c73b924c3676264062795b1c",
    "signer": "0x79Fde38E70803a0bb282FfD0274915B6993F0f7E",
    "userId": "757991110"
  }
}