{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "435799814",
    "entityType": "User",
    "nonce": "0x3eb9e5151a653b54a4e2c6d7ed40bf5086891a3c5b2f77365f562d9af96a264d",
    "signature": "0x55cdd0419784046afae79cc28c88d6113b99643e17a87a764020a902cd61c81256d730ca90d9e5074b599be1ef77b23ece7d58014ce7a877a4f1bdc850acb33b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}