{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x366e2d84025c5d05e94b86934447a9e882f8676ea86b58df62301da984cac8fe",
    "signature": "0xd5957b9ac9dd9aaae7c43d6a57a9217a2900eb7d9d7c7710bb1dd53110f4b5a2101b001031168b7c73390fe8feaaf408d2aff6dff89d54d10a1508974d173b2c1b",
    "signer": "0x84Ba6409f51c98704af9F6B5fB71a8c9CF0a6661",
    "userId": "912395548"
  }
}