{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x99fc9312319c635a6c92c8bafd747d6db78b219e28db52a8b562e92b87a9d874",
    "signature": "0xf104753038c7053fbf75ca868cd40bfe06c58ad67c1558291056d45dea5282bc2033b6e885d1fb0c24ab815019ba33d709e518b1fdb54a1166147bffcb4f07e21b",
    "signer": "0x6bbE8Ba8276834DECf4c0d3460707A86b8e263b4",
    "userId": "248785756"
  }
}