{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2a556634fd0a67fea79b76814ba6a538c364e36eb248e5085ca0ac8098d39002",
    "signature": "0x081f4e90781a953a39288a9c4939520f020cccdfe476e21b63ec1bd7075c13976b4d89593ed682d878fdaf498946253d281ed9bb819c428929530b70b99299d61b",
    "signer": "0xE7a9E33DeC9Adf8605A88750C979e41f6fdAba53",
    "userId": "722055746"
  }
}