{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x642338a48069c15c9cc2fb4ab0a671b41261f169835fb4fd6babcf20bf151435",
    "signature": "0x81c0833dbb4052d6f8a12abea50d88f2ad63dc2e924c0423b0ab260928c49001321559f96b6baaa6c9ce828ebb479019759dd8c7bf1db5ce06b93a54a683257a1b",
    "signer": "0x569AD4a425B92a964d8e182094f4aC58C0673162",
    "userId": "577745560"
  }
}