{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x6708163a513c20d6e40596750f7a9c6a520089089b09c832e566a9d8620980ff",
    "signature": "0xc98dad0264cc3c25dcd28d9cb113917040767ed3b9c9801bb44684153b5b0aa87201eabef7927285af809a1029ff98195fd6ea54cfefd3db64307918d7ecbc091c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}