{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf8cc327c9527f87fd95d9eeeec4a2d347b8c5e521ce6e3e5e8407e2b7a80272c",
    "signature": "0x8887f0470b76e7ed420fe7d70dfee7397a6173b93c43b5831fa4107d09f314ff428e933e7aa6dd4f5041702a35ec903350ce64630c3d9a9ab5a83ec006f01cf31b",
    "signer": "0xc0d1b6f997F346E0291eDa5a82ffC8D9d704FC21",
    "userId": "292524943"
  }
}