{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256479919",
    "entityType": "User",
    "nonce": "0x6b81dadceb83f1ff5d6674cdd2947ad2a884c7356b3ea6fe857fa45c610df55c",
    "signature": "0xa2529c6d007cdb0bb48ed8cc4d049dcf02ea41b6a78b57df628cb61c1132ad8e34cdf17ae97541f7f5fefe06623bfff9441242b15609057f4be58810ecc9dc1b1c",
    "signer": "0x65EB59bb6C92a37Ff6b3c51d34c0aD3607F751cb",
    "userId": "305838"
  }
}