{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40174",
    "entityType": "User",
    "nonce": "0xd4fe2444c52d55ec2482c0298046a2d5bbde0dc5ae0dc97f9c5eabf6c32143b5",
    "signature": "0x72a41086c20d49fd1e7f039522625ef59f6f93bede1f510a3b6b6c0f88e9f5b73aeace4731101e041cbf2ca29f8d79b050570e12906957a27fc395e31facd3671c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}