{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xef193b203d3701042adb9ec977f2157f2f232cc10c2349a5db1ebd53edf672c2",
    "signature": "0xccb96c28a5687f38dfe8b90b1eeb5bd9cd379dc1487e22de141a85de52710c213a08efcb895c6e30973029c1fc5bced2e5e8d2eabacb3e582f00d7718accd83c1b",
    "signer": "0x6357f7Fd9495F9Da96b38682398cA12fFA4bf604",
    "userId": "841195287"
  }
}