{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "647391197",
    "entityType": "User",
    "nonce": "0xabe3cc783475b7e9aacf435eb07e4fb7f92f8a9298b9c8285a5906c75fe14d82",
    "signature": "0xfdd1bb7595a190ce3bb2f93d42cbd46d57ed09f608c68de8050230ed0a7e51fe313154a329a197639571abc516acf54fb1364090c34c2eb7e7c8a0345da96cce1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}