{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe6c588622896a1f7b6a607b6d449954385e1ae97297368bd85b3a69d9ecf2cef",
    "signature": "0x8e65a5b7e2b3f76c979f89c1f917d803ced8883b29f80a06ea527f3d35f190d3231ce8c7128aeed91f84074d65b911ea2d24cb356d01719f15a0144b29fbb9f81b",
    "signer": "0x10915d5e626E0A08064f4c9DDA546bDEB7Fe4258",
    "userId": "871588792"
  }
}