{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328894",
    "entityType": "User",
    "nonce": "0x861629b351a2ad718c8ff5c23cb96e9bbc087b3954eea407b0bc86bd45b43602",
    "signature": "0x80dd0d17cd51cd12eccc60cd4d7c796562409d2efccb6c560a2f5b4a31a4d84122da29d49781dc6e4f1c04f79438b4781782cf83364b79220b20774c43fa7afc1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}