{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "604152279",
    "entityType": "User",
    "nonce": "0xbc918db737de5eefa97072191ab78830a6d7c85d051072f56654d008ece57251",
    "signature": "0x84b44f697c33f720d75735661cd13be572f94722b1342486cca3d4f0f91ebe4a5d8d4f72cb8414b574dd39a7e246a34e904eb4cda98d88e3d3dc2288559acf211c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}