{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475275462",
    "entityType": "User",
    "nonce": "0x559f17fc7ca9d9960faba3d7096aa4f8ae2033770d140a3dc9b6973dfda1e518",
    "signature": "0x3da32cb0f815660e52e8eae647aea12ecfa8b6413b24ccb5efd1d9c5aff853312309db8ce3d6dd81735713e91c05fd0e2613d4d1008c7d7b1fe70ecf8a59b1d61c",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}