{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108320",
    "entityType": "User",
    "nonce": "0x94478443d5d048bac1e169912f8227089f98d5083d55d5116a7b8c1e430b97b8",
    "signature": "0xb8c8d46eebad5b40d476c19ec1e198e230ea119b97fc92325e1cad0f40e5ac7666319b40b7e222f7238658986e1d5a3fe1c5bb6ddada268d6e6bd2f318fe94831c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}