{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7791",
    "entityType": "User",
    "nonce": "0xf93317bdd56aa2844553b96366a2f937f7ee2f4e428fccd8005811f6396184d0",
    "signature": "0x31bddf9e1bd5bd3dbbaf82e35929f8dd39a6118331a2ce9c6b5991899c7593520d5ca88d7025a9fd7ef7d6a8bc829ab37cd20ecb2eb174bbc3cf59807652d7931c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}