{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdbcbe38404e2709d84b3bd3670f5a345e269ba1e6b9cb8757b472c580829e542",
    "signature": "0x575cf56e49a864502894c58a1b8299e9d7ade91e850daad6e1ee8226af6f9a8004ac1ecfb5657c81c0e4cee25137b64da159ddd9f1e96628742d985d01a976581b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}