{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xbb298552148587e0e7c7dd79d387b12ee591fbf819a75073326618ee83540015",
    "signature": "0x18663f0dc6123c22b57e0f59b9f4aa304bed9ecd7d38ea595d1ea4666bdd5e9d6791aa14f0f690e0d912d4077bd2fa6adc6c1e08abc4b0d3079b74a88a0c1ed71b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}