{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4452",
    "entityType": "User",
    "nonce": "0x2de46869616cf6fd0f6822b8f60ab905eb24d56f1bf8b387b4f18e368a975316",
    "signature": "0xfecb1d996b826f1143deb38bfcc483b84e04f3f51d86e371250dc1a4ae954216139c9c189f7e501befb847ec52564ed031af97a1fb114378d117a491137741b61c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}