{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406",
    "entityType": "User",
    "nonce": "0xc2fe7dd65142a2d960cc39722cbfacd50540aa3b90ea0e8ad1b489c5a3b50838",
    "signature": "0x2164db4f0f3d02bcdb263411618518079882409766d85d4c458b7c55c0a2dc6c4de8514129503d0f74e39cf29a8a046bb6b2314c500b03320d5956133e5ec2b61b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}