{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf125348f5114e352670a4031491ceeeebf22da34f74c64c101e462bd4adb851",
    "signature": "0x5e642fcb5ce414149ea83f8ffe150bb610ce9724b5b7c0955c97f494475259620aaab6b2fbaddc24d8652ceeec5cb4310c4baaa67182a3fad010f5e4763361e81c",
    "signer": "0x81e9de9D1365F9c0cdeb3578Eff3bfC3122088d0",
    "userId": "8551894"
  }
}