{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x7c2bbad6105506995071d8ec744d5bbf1a3f465853637c847b2c96e071078655",
    "signature": "0xe5acd3a04326ba4b38c6113a9eec03879d689efb7f13b4ebc41076a60cd8472320e316ae2929b6f176af92b927529abf0e9946598d4d82063be7621dc87d52031b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}