{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0x4780fd50d1c12d5e7417a968259eb26947b9ec826bfc726645ec741f029622e3",
    "signature": "0xc8267d1e3478216cac7d53c88c0e02cd294b48f1ec3c8bb773f0a4e85472ca1b6ba4fb1e0460bded554e23a4dcb6d6975aaa1fc81d0905bb8630b8e1dabd42f81b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}