{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358439",
    "entityType": "User",
    "nonce": "0x3883142b667bfb5b60fc06b94714f885e7fa1befdf3e59e03c2fba9842d8bc37",
    "signature": "0x927d98345e33cc9e37126d47b3a1c15a52b463696272a7491f5387a821ba2b63792b8b7021c1b94cc784b20013a63c42803f5ff9e7c24cd36a5b436b042322321c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}