{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354011310",
    "entityType": "User",
    "nonce": "0xdfe777986b480679661fb20808195ce21843c91a71a4b5fb5fd381759170083a",
    "signature": "0x67dc5be4a1deda8d4b94c50b92f4b51c8c7f8d92360c8f99b193a1f58438d5664be7cb0b7fe7cb59e28e8e07c0617d3ad989b83167a23772d4f76f3835383a2c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}