{
  "manageEntity": {
    "action": "Create",
    "entityId": "1262290348",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":20,\"entity_id\":106586070,\"body\":\"sickkk\",\"comment_id\":1262290348,\"track_timestamp_s\":47,\"mentions\":[]}}",
    "nonce": "0xb3682d66aee34187ec1bb8f3d5cf894a2dea232555bd641cd4bd684e6d03cf57",
    "signature": "0x213aff94bc4b1357bbe6ff052df81a19cec6024fb1cba192f41eb2a51858d73f74dddbef0c13819392585aad6b66fee6140b24660678e29a1a80156585d424601b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}