{
  "manageEntity": {
    "action": "Create",
    "entityId": "1538253266",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"bang banggg\",\"entity_id\":1293132653,\"track_timestamp_s\":60}}",
    "nonce": "0x2f618cdd0b849e7d78d43d26b22a36fa57b8a5da7b620821e1d25660660c69b2",
    "signature": "0x455896131ee9b4ed02c937388e94a084fa557305fa5f6693b9e163dc06cf12ae71db02e6cc1bc1495f43a5fe8c89d1099f3e913001d72acb8bed8e026bca88661b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}