{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37057",
    "entityType": "User",
    "nonce": "0x531f1415d510cee4e035d5252103f605bc2f8f6af21044191d212f6c0ae02d93",
    "signature": "0xb7a58ddcce151870c72c27b74974b760266b769e93712a339c04ad5fa4977b6950adddd10eea80be5a0d3dc5c29112ac9948c1519e8ff96345f8a63fd7f445aa1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}