{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326049483",
    "entityType": "User",
    "nonce": "0x3489ff03b777badaa924f260b1180d27a0c488ab8cb277831b4a26c4cd4a9099",
    "signature": "0x037413d16718cd7275315ae24453d7921fa649af60fcf71c7da172da5e96386c66c7c22ca486b131ed787bb2d677a6c5de7e16b5985701d91538fb6127142b7e1c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}