{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189830",
    "entityType": "User",
    "nonce": "0xd9b292e2bb6d01cf2414ed8316356c9ef8ae6e71d804e70fa01ae12fe6732a3a",
    "signature": "0x41067db57de4a2676002208b0e71c8b3e5b9c1e59b81bb0651653638b53535af5c795526e4ed4dc5772d4f5155e7f901c37124eef4f4b7d899d85c8c2c4ba2441c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}