{
  "manageEntity": {
    "action": "Create",
    "entityId": "629273699",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Nice\",\"entity_id\":1590680551}}",
    "nonce": "0x86178bd5f0fe3e4e87061305c91d269a27ca6ec3dd63680dd48e549384e7dac2",
    "signature": "0xd15da28b99e4a349b1a29ec2a99e5321e7a5d0bd0911c04664ae5d7cc7fbcd7e757c775ae576fc2fc9e79969c025dfaf09c99de96af433cf34d4c9eae4f1a9f91b",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}