{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956002390",
    "entityType": "User",
    "nonce": "0x607494d0bd53a21e3cc89ae2205d484f8ec77fdabd27b28634a6d565bbfd4c10",
    "signature": "0xde26c463117a358ee294dc52ef7f8d2215c0cd8c520edabfafe6b38e182a96ca0c4d739810318dae2eb0a7d67c9954a276ae882b47979109b7197570afa19f291c",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}