{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe4187eb0686a2732b68574d32c0795119a9dc59e876bb140414130a71e4ae72a",
    "signature": "0xac6a281e0b734387dc383e4165784c3730243a9b68734e62492a203474237f5913f85dcca5f5375d7a396ab60d3302886da6166fd07c2768c5a4713a952ca69f1c",
    "signer": "0xc6DE4A1650211DA8ed1e181670c5B2c636248479",
    "userId": "977706235"
  }
}