{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203322",
    "entityType": "User",
    "nonce": "0x82347c7505cd4a8c60917019300484b7b4ebf70a6dd620ed89df18ada3758028",
    "signature": "0xf13d84be6e687307395c9a002b24b6b2e4c69d83f602f8da0ad560692110af1d44a06b5f1ac05d2680c1a81de60d52507b7a11db8096867cc3c0cca8ca58cb041b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}