{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xb6e002105bf39ad65e4ac00a30f337e402fef393273dfb2966566159bd9e72eb",
    "signature": "0xab7bf6047b7feefd3eef7aafa7bd1ca9425eec097713df41bd47473bf6562e35010682006b1178f5792fe30938ab48fe44d61b60bfd49a051f66a07bc94130961b",
    "signer": "0xd832cDDE8Da519b6aD56d440c66722AC65cc18C8",
    "userId": "755155896"
  }
}