{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72597",
    "entityType": "User",
    "nonce": "0xc77ccd9d581df22572465f1362413d6b91ae875f462f5f85ac41bdaf40b05366",
    "signature": "0x97dc3c0527eb3ac7bf569de0ce2a14685a6cdec04f3f18b8ad4796376110c0494397c9f379e5b6911bdfde8b3179e214f2e6a546eb74d26a2b56e1f2a78722831b",
    "signer": "0x6B4CB8664E41AB502212155456Fe4feEDeA85555",
    "userId": "463162548"
  }
}