{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "878608020",
    "entityType": "User",
    "nonce": "0x59ff354f4b958f8ddd85e9e5ada1831a7171bf62d049477c466c1cf0348840cc",
    "signature": "0x298dffb416a57e8d0737b2a16468a6edd665a53f9b2355951de250de1af371a05b3633d843db02832a9cff8f351f77897d42410f010f68f9f4a261303574fc7c1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}