{
  "manageEntity": {
    "action": "Create",
    "entityId": "1319730918",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Love it, sounds a lot funky! \",\"entity_id\":1854944736,\"track_timestamp_s\":106}}",
    "nonce": "0x149ac661421f3782108baee399f7332d8bb5357e02326adf561080e119eb68ad",
    "signature": "0xce514952a8e745eb74bfa661be8079f940c668700a8208baec1a5b940e23df9b462a2719546748c01fc2216bb08e9a47ec12b19323cf66baba7368710e6cdff81b",
    "signer": "0x37C656432bDD87630C13F60036e9857B5ee36154",
    "userId": "288167767"
  }
}