{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xb23d18aca2db83ba80bfb5a6bd18ff8eb3b7e6e489b70078f285b47e748c4632",
    "signature": "0x1dcfa1824dfd4f1b6a7948b1fb20bdcdcea0eb1bb550f021420ae29c68a349f900c674a73bd0d99030f36ae30a4b28037c663d6d779a9fa64d64be66a1ed8d6f1b",
    "signer": "0xE5c3922424A1B896ad08ED5889f36Ca5DC40660a",
    "userId": "229327490"
  }
}