{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "499031899",
    "entityType": "User",
    "nonce": "0xc25f8364a8ce6e0f0aa7b32917e0680bb4eaedda4dcfa30b6603ea22e58a3a5e",
    "signature": "0x592c29155182c9ffdb1b2e964505affef026b1bb92e732437fa1772e64f9807469cd3439b2e516b073eb3ab18124502637bf34391ce9f7245d4ec8fefaca8ed21c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}