{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298766",
    "entityType": "User",
    "nonce": "0x78c0742e8a4a1e84641761e4682247678b6b03c2d7320a0d66b38a9d3da76bf0",
    "signature": "0x691ce605afea6835a9835d27d73d8f0eab3ccfe2b257cc5f8b7c700dd4284d6961e2b223829ebf81b47acaa31b40ea8dd1205bb8cb56d30068c11f057d35c3951b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}