{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa9b97a35708050cc705061814805877a617701c615b3e281c600ee56c6648505",
    "signature": "0x6315c1e19a8463d32c79f39129acf0e0b6410f1f1559cb37b3524a560215bcb455e465603cb8567fad4d1fdf9fdc0ebc57867127fdc02f435a51bfab7391efae1b",
    "signer": "0x16d95048A18662ce6952aD867929390497F1803c",
    "userId": "606514460"
  }
}