{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51702",
    "entityType": "User",
    "nonce": "0x1108b80618f35bd6a5fbb18f03130b0a78a0f02450c5e8b42dbd3f3bc49a4a81",
    "signature": "0x1221fdd6fc28278a46fd5a7a984fa0e7c8fc1badf167c4d38029d1efd79e912a76ff91fac5ff8d5d2302ec63915c2ff410f8f875aa4a7db073bb463224aeb2f31b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}