{
  "manageEntity": {
    "action": "Create",
    "entityId": "1679693596",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"pretty \u003c3\",\"entity_id\":771141606,\"track_timestamp_s\":92}}",
    "nonce": "0xfa1bdcf2c9e1a6842fb29aa510c3932e5d5f53d479df61a48e3abcb4d53c859a",
    "signature": "0x82ee1708564447d86771023d2fb686127ee757a9bf833828257422f74356485b347f9cdf62bbea169f6e5c3c9b008da83f840ed6072a491c0645429584cda6a91b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}