{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680535",
    "entityType": "User",
    "nonce": "0x53a86c6bd756221aecb713a584429e8c1b744b5ad834d21837bd929e5e036b15",
    "signature": "0xefab8a30d2b815f38d297b716349bc1e8b18ad46549ebfa870f535c5f66aafab6e35fe56764de886817974f7ddb6f614b2d705dce065709a47dccd714cc545411c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}