{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154693",
    "entityType": "User",
    "nonce": "0x21a3bb98507fedc03c0cd6a24df2d7b6b8a1abc035e25ddca128a8de661a269f",
    "signature": "0xdc10a4cdce8bfd23d94362f8c773dd798e681bcb8d12660cb50c88c3fcca47c31f8b1666beeebf05578b64def036cf09bde59c9f1e988322842bec04b933b3991b",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}