{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345461669",
    "entityType": "User",
    "nonce": "0x76c7faac766fd5ffc7b627876325a812eddced7cb371b6d2854db03b92260970",
    "signature": "0xee3fdfba2bf407e94f2faef5e9708cc641a749b21416b060d42e0984b37f518a5049c22b71650df922ff25f2d476e7b68bb2cf2d2de192be8905fa5c96ad7d1c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}