{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb8dbaedc35cf4097ab0415ccdf940cd4d9e7a26b7afe5386a491d99a6ad318b7",
    "signature": "0x485fcf68973d7310e9e8524c30d49010d3ff983e13d3eb39ad7bc3e3db6b07bb062dceb2f95306794948495d42a857e9127d4be37590962364f66a21601501991c",
    "signer": "0xac0E19D9357EFF94b5a102879A9388FfDBC02CC9",
    "userId": "925773208"
  }
}