{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55149",
    "entityType": "User",
    "nonce": "0x8d9e79f1a636567419866555e0a36cce8ff8f8a533b706e8ed6ab71634a4106b",
    "signature": "0x8f4f8de9c2d8d2ada6e29dd222002345aae9ef3f1c4496d8b846430bfa05ead06a89e8f22854e9fdbb76cacab5b511647151357b632602c3141d90849db8c3071c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}