{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1392",
    "entityType": "User",
    "nonce": "0xdaba9f2fe518cf7f7d09aee2b523f8be467a1b6a995fc77f2a89f1beb7f0527c",
    "signature": "0xe844d313bdeaa60cc211d90a07e091a10b62da30e0b4f0581b8baf55f747a1940434795b377245adb797315aa616cf6e312af2a3c92406571bdbedf7f5dcd7651c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}