{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2e81c9b9ab6777a426460f27e59e2a5d2858d28515703b037e49e7c3c613f927",
    "signature": "0x5e7fa17bd9f651bce0b9e589512f48e9d5f1dbe11f67a7afec876755b1c6b2e72b5e17d54da1b1ed1c3ff1a6be47e18345932bc9ccf8333af98b9710f9623adf1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}