{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x63f46be6740be01d450474c4f5ba5e050c9a3737f27ea551d81d7e3fa1370b55",
    "signature": "0x3b5595b5a7ead9b71acd178081f338e758ba424734777cfea14801e489cac719732b18da14eda614f079abbea4a4dae1495006547534cbf5a7f408929b9eb72d1c",
    "signer": "0x9a34c4081894E4eF760E1b387C61c172aAf8B1A3",
    "userId": "694633659"
  }
}