{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976719636",
    "entityType": "User",
    "nonce": "0x342e3ebc6f5e74364a05c00a6b633023fe528c6338cc6069f1857b42ab9be52c",
    "signature": "0x3e0674e8c5c6e365d1ff0b8840974fed3e0317aa6375b4c61370996d73927d293618d000bdcb7586922da98461ee9bd5d9af42ba3fa1be805ab63f700e55640d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}