{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228873720",
    "entityType": "User",
    "nonce": "0xa2a1a0b864f822821e7a2a83c8b4e83632c6eb3f13ad419a8831e6708f9fe6f4",
    "signature": "0x406c750d43a914376fa36b090ccaa6d9571e883c716fc20b6590f0d98545dd483760daefad4da37260a6029df593b4b8814429ea06602aeb70356ad5f52ab4f01c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}