{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xd171a7509ac894fb7a73a3ffff1c53b2771bfef160d85d061e215cce6ae82230",
    "signature": "0x507ede1d7d8d6dcf6e6bd06eb4ca5b6c9dd023011f45e05989f33e9dfed0262d3d09adfbf54a6c867b3e0b9d2ff3e1422b4661211945da2b5ec581d9604b460b1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}