{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfdbe269273eed159ae31c72b8f912f0f1af9e085adb171b08107e4058277b7b4",
    "signature": "0x7d50bcc19de555e1526da53a1cfba001b901a99691d0e11dc92f65b3394a43d3695728a280903009c9df61246f50b721ae11bbac59e5ff975b3dc4bbe0a0d7741b",
    "signer": "0xce8f5C07846a896F7B06174aa9e66865d33e2257",
    "userId": "757782215"
  }
}