{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141719",
    "entityType": "User",
    "nonce": "0x9ce4e9c7eb17954542b4434eff76282a8cf0760b27686ed368cbc973dae7d8c8",
    "signature": "0x8f0a9062791c7392aa6dc908e551ded8108650a7b8a6b62e42e7593a1e536ab802ebd8ec40d94c5b4b6bf106554bb5f0429efa20f2ddaa39769a2022cef9ebc21b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}