{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9bf531dad9c63f4c6e1cab91bf4db743dbd9431f3f859baa6ddaf0bdcd55739d",
    "signature": "0xee4f79fb72a595f3f99d838073a53287db146f21aa8c4c00e3773d4b26c358ca30f7d0bced309fb3e5de645000fb67cc457fe0c779cd644617d8b12b3d11944f1b",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}