{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "917778552",
    "entityType": "User",
    "nonce": "0xa8aba3795b5bb3bc6084f2e000ed0924039020bca0163ee26cea507593690481",
    "signature": "0x19f544fa37137f60e67cefe39dff73a49bb193e87f10f34e6557b3f238f569f109cfef5617fc2c61c4fc903bff816e1e4f1f53dfbf3f0c51937ce56c1f56ffcf1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}