{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78148",
    "entityType": "User",
    "nonce": "0x21bdebb90009dea242526356e18c84c412354807fbf43ebfac59c02634f7ab3f",
    "signature": "0xfd17bdf372afee72a8a4c7c557f6440f8343c871d8a6926da64b8fa131e1a80c1777066208805024217544dcf6b2ab87997ce8d9c9c042530328ca57085383a21b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}