{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51978829",
    "entityType": "User",
    "nonce": "0x16962dbaa6e32490abeb7866ba328f08aa1b9d269b9efdcfc1f503475196e739",
    "signature": "0xc0e8635b5c71f9bbfa32384d4ea36b952bc954fff33aaff7b61901bb5e6d49bc2c71c9550517c1e5cdca2de3387ef1e9a7203052138b6210e62525d3387cd5d11b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}