{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0xc56416a2f1ef9dc1b779c87a2d22117cf13a2f692e3378d09c6d72e6e6150d6a",
    "signature": "0x07743860f554c6705b8c50e9dae70934cc080442c443c788fd48f0fa0e38d1ef52fd2d85795dec7653643cd237a7c1eb8cd896480ce3ec6d39b52cc96fd3f46d1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}