{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xedab09940b019f39e0537d9ca5c17db65a3b7e28516fe2a218865cc562f3bc85",
    "signature": "0x9f9513ac172fe973b83995492b067d25c52215aa8ccd2d9085c0b47e024d79427e954945a95be7d11181a09343a88856bfa8787e68f27313931049347ada9ebc1b",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}