{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaefdc0965daec32c85bfede2dd37b4da121dae8a9c2fe76e303a7658b7c28c32",
    "signature": "0xf58deb687f8a17565efeb4f01e949c7a612c3981691e2114c132c9a8827f57c857faf97a0cc282727030cbc19cab3218c948edece01017cf4b8113263040a8211b",
    "signer": "0xdc0D3B504313e1342650Af798812CCCd2E68Dd9D",
    "userId": "926898406"
  }
}