{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0xb09b18c61f48ed907dc88bce0bc266661ddc1518c80b0fa0ff4cef008ebdf5b9",
    "signature": "0x622d7d3c632ca335470b11b1e53af535a9363b2dc1041eb286f390b668fdf7ba2b28288825e65ce2e42b96962fabf07fe785e244b2124f58a83d83aaf68527681b",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}