{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2d5ab3949b3de507299982210d17050571a25f6bfc6b7f8a397314c69455eb6f",
    "signature": "0x75846cdf8f31d1f389a189d3c0ef27b030281df9d968428692595831a7345ea3265dcc4ec29efc6ebd0af799ea0e9a95a304cfb8823e9b8ab5474ef2faaa96eb1b",
    "signer": "0x395d3ac0a09Fa9B6ee1A7E0602984FC2c810d326",
    "userId": "483262046"
  }
}