{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48108963",
    "entityType": "User",
    "nonce": "0x9ddc7af0a7c8fdc569eff98f0a523c85408e242d7e6f1e54c40c80f2528ffb72",
    "signature": "0xc6a51ea80b7951bb1a6c41a3226afe4d3bd09a8409cf1050f011774d0a418d966e091a70a1538e09bb5edb0757600c5d81e9d00e7624c51e780d9ff0ff2c46121c",
    "signer": "0x49793Cd5b9669F83734850532782C2CADb475324",
    "userId": "271485152"
  }
}