{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158023",
    "entityType": "User",
    "nonce": "0x16d0dcdd33e9fd399700eb181c3dce38610c96d5d5c629232d693ecb2fe2bc18",
    "signature": "0xccecc6a6957756608bd1bac4cd19b555163f422c0d59ebf2be8091d079358ceb2188cb10dee6f6c18cccd74a337694a5a9fe13e110aad6b5ac054a640edc7e951b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}