{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x2eeef8b4a7410735331c0c2907c77b8868701ac25911679f5a5cbe9544157a5a",
    "signature": "0xba7b5ed17908e22b8624d9026c3281a9e0bb2cedbc95374a01d2eb22bb8abab84098628faa91b802b31b3631563bf570ba50f5a7f8d5067c9bb15c4f5c09c0f51b",
    "signer": "0xAEc4BA229696a4DAe2125cD32943943AaCa0CaF4",
    "userId": "354024696"
  }
}