{
  "manageEntity": {
    "action": "Create",
    "entityId": "689129851",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Thank you.\",\"entity_id\":864896147}}",
    "nonce": "0xe6186ef3109c02226c0c8debc597a27aa01d991fb521a6dfbad9358d064f7aeb",
    "signature": "0x756d5ade40a731b45ec7682faf01323ada92bf571543a1b6615d76349b0bc5850c78fdbfd56f4b981a6f799f7ffcb5425bd31f2b1c625f481d3dd4c12c1c71941b",
    "signer": "0xcf1f3CF82aA41361e21a8d4ed015Ea3A1aDd1C8b",
    "userId": "238180"
  }
}