{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172110",
    "entityType": "User",
    "nonce": "0xa7f02661c42fb19f793911ace55229ccc4ac5684a6051727c06e82a9f39ea4d2",
    "signature": "0xa973c0f56532bde0a241b409271a067f353244dd6c8714f4d1099bc5112eb6343017e3a2e12890d69273388e6af889e72c51e17acbedf46b785bd816adc273ed1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}