{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772682384",
    "entityType": "User",
    "nonce": "0x677e8b1f483897108cf09d6a2a8671396533b073bc8b2bebdd770f70f4a8749e",
    "signature": "0x67b9abbd81c8cc76932445f43535e12a2734ab3aef2d7b8b1de7a768a59e1f781ef4d9dc485fe044d2f9b95404e40760d2c61214b35cab15e9ce9e378569cd231b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}