{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475900419",
    "entityType": "User",
    "nonce": "0xb43abd8ab3656255bec279ff633fe05c21f275d9f2310af9cfe0ce4a69967dcc",
    "signature": "0xcb67ef10bf0361acc39e8cba16ebb6cdb913e225216d3fb2a5c1226bb1ba199370d47c8f7899375cc82a95dc3848c58c4876dd748a85aed1159e747b2d551e9e1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}