{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "765540152",
    "entityType": "User",
    "nonce": "0x888683d5f3b5be9b3c91a00b6c0f8126e310c7c1ca454782fb4405da88d2ea06",
    "signature": "0xf5d25db079c76581ca3cade5ee04a7370640a0c34523d102ef37581df448f9442403341fac25cb50d7cc7aad6bb4abb5c68f7b695c132aad225dbb9792ae2fe91c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}