{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209310",
    "entityType": "User",
    "nonce": "0x67fd493b1a87163314e84867af576419ba37a985bcc6730f02e9a129a5412a06",
    "signature": "0xa432a1b832b435e16bffd8b05933692d40ead274e8790bff347948837c60823d018d13a2578f79289d7b7301db8170757dddc91c7cfae431443255d2bbc4557b1b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}