{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "480962013",
    "entityType": "User",
    "nonce": "0x54e327380e70c338ef99e7ceffc0104c639a169d32611d1fd72049c633a63fab",
    "signature": "0x16bd095001ac5503de847280052de4d2a3fcc93128e3928c153d3d99baa967791a0f715c7d71994d4e7c496180a43a37f3dd9c5686c4d1112b71705d4421e87e1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}