{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381638009",
    "entityType": "User",
    "nonce": "0x1199eda8b4b8c2fc4572f8d4fbf65b69ee0bea78944907fbcb5aa7820e0a1886",
    "signature": "0xe6feb84cd5cd4a610b261dd15d2262840b327ac896ee5ae83125c6a15fe77c49262bd97a9c50c662b43aa4004ea63de9394e9903b263a8baa4ef81f6b02408d41c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}