{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x90d8c8096966310995e2f940167e0d48bcdf105bb585d5cc6d5e8bdb9753ea59",
    "signature": "0xcd411547fe55050c7cbefcf4d45c06d594f7e7ced23e2a1919369bb99dbe9c543359e0c71935a5bacde6dde57a618319e83f8562adca9833338fc2d90f4a32f61c",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}