{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956241273",
    "entityType": "User",
    "nonce": "0x9ae7cf7a7a742fffa6d9cb5daea4e52ff8dedb13e1ff1c54be7d341b8607f4e1",
    "signature": "0xf829652f1accab8a1afba1de03be98b3737a44e6354e78ed1478df8b20b0e02107a518a50d112d95880ea221344cbd195dc570687e8fe04441cfb7a3d13b67c21c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}