{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44",
    "entityType": "User",
    "nonce": "0xbcef90f77a3eb2df819f6b86c662b785a446d91e96ef976a9c329b0554276d4d",
    "signature": "0xe1c6b7f801c3fc5e080173d833df970c785b70c2bef980710915bca942b4dfcd483e069363586b9099ee6707b6960eff2b51217822c4ca68c6bb97e116f78ac11c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}