{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102041989",
    "entityType": "User",
    "nonce": "0xdf7b3c7e1b5b318114dbe24ea91f60344f1edb17a43c7a5b794e97909ed63a26",
    "signature": "0x84a4199cd9e79065ccb9498332b6379b30a44e4c0901fdb42dfed4ba1a86dcc92ef015d2baa62eacd5fcc9a7544e624e9bac5bc927a7a38d10785611e9ac62f01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}