{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd62db048401b6a6ef4a91a9fcb88bcbf067e43dd65019d3e91544d0334c6c3c9",
    "signature": "0x0f60d6517d7ee169a6b5a90c3f5a2a37de94c31c253a712461ddaf6c3f2bc20000db0772ee44db22fa6620c9c696d78f93cf362adeb501aee9b053f9365beed61b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}