{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "450249739",
    "entityType": "User",
    "nonce": "0x69c80e6afc45d7cf57204f21c06fb933ae893d3eb366b95e51f714f7e6ef13f6",
    "signature": "0x0e53a6f4bcd8c37597c369500ea374c7092995ae1349438c92896e75506d6bd73ccbcbe6886078ecc33e1a8cb7bb311f1540f9d178a70e4524ae0d3bf80922751b",
    "signer": "0x9436FA87F6c8C3aa9e0F0fc7960566dEeB9e23d4",
    "userId": "2047015"
  }
}