{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220529",
    "entityType": "User",
    "nonce": "0x766da3fcff9586028cd22a206a72d7fcd6be560e3847310f6dc337b3ac79d416",
    "signature": "0x7e3dac44b1eac68b3621639707c5ba0e744cbc22815ea539d4836f75f86d9a7101a84228df9a81190bfde84a361fc8015d3b58b41fafa1b7e39d1e028716828c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}