{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980650",
    "entityType": "User",
    "nonce": "0xf67e182f4669e8fdcabedfbd6afd29da920860195654e1c07ae1364481499f84",
    "signature": "0x901ff7760c880da20e19ff61f69da039a9695a97642d15723f11036071240fe314a986a7d1df7cfd866f100592be21937a2bf015be8b5780ffdf0b1e682cbf491c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}