{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200945",
    "entityType": "User",
    "nonce": "0x11c000a6e58c81fe55aea5347fcb2e299c4c021c8f4c544bb4361f11ae9e0a62",
    "signature": "0x7be996bfba1ebea20db720fa49d44982e1c8c4c2f4c02a8ce49669b6eb48935e07b65bbf649d746a38d7b84d2502eee580f39ee59589e1f291f1d6d2708b28f71b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}