{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5077",
    "entityType": "User",
    "nonce": "0xcd578bba63164697321599e84b671d9ef72f302e2b95dfe51fecc9cafeaa3995",
    "signature": "0x1d6966866b755ca9af98cf1b4946802badfa3593a5345b61b4f6779324aae64a51153b9b019fa86132f7059ad2b775aab7c8c1a95167e8609e59acf1894c38fd1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}