{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x685e18f3582774e64e9cfa191690846c90afe0e456053d656ba95fa5b65e4362",
    "signature": "0xcb0f9753878fb461fb829f706deeb0156d2ab1a166850aa10e02491d1912f2fa1ca263638530eb19f68cd81022d21c39012d5281f6f7ebf52ad0e48fe1b35f701b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}