{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0xb7fe9642b6dd8f1f1cc9a3858f05d98bf5f9c23493a745f27c8437924542bedf",
    "signature": "0xfd3a07c944a53c462816079ff1cd312e6501a23a7eec45a770b8e97859d37f1e351a6ce2472d2cbb74bc0111046d359f607790fb9e14665e23a450c5d3b4bbbd1b",
    "signer": "0xF51BBf2D093bbC94555bc2299Ae53Ce8F7963374",
    "userId": "38277"
  }
}