{
  "manageEntity": {
    "action": "Create",
    "entityId": "1489898695",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"gota love some uk grime/garage! 👊🔥\",\"entity_id\":1537309719,\"track_timestamp_s\":146}}",
    "nonce": "0xf3317355038b2d2e874c31ef2d9c143c152e5b76467959b80f0e392f8d0c3aa7",
    "signature": "0x5ac017464b13707a427d9f7557fe50b9810800e947966b03ddfc250a3f38ff8b6cc626d54c9ace2f0abe7fb4f1ac7baebda05352953d8524fe272e1f72abc1ac1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}