{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80583",
    "entityType": "User",
    "nonce": "0xbaa457f768dbe5dc80c92028e7c53cb371e216673e3753282a148e87d960e288",
    "signature": "0xb9f1b6ef63f78d9ca6d0a627e4171ca1b925acde66d0a19ecb68f7ea1b25170a1d477aceec218176365607cd6f9ac2e59faa4ce5e5b7d0f89ae973561fb7826e1b",
    "signer": "0x454E40E519436f9b161511E2CF1Dda5d7197c8Fb",
    "userId": "745901100"
  }
}