{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63644",
    "entityType": "User",
    "nonce": "0x5cf7f36e6c73c19f1a74cc0ee40eb39c91c66b809fd102c3d08c70500ce84a17",
    "signature": "0x47f569a62de99fcb36af5d936ea5d7e7f4ae59c509f330d86f6314b7a89e05325cd60bf43dcb9cf5174b89d9eb51752507296aa5607395e7bfb49a7b65f2e94f1c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}