{
  "manageEntity": {
    "action": "Create",
    "entityId": "614338695",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"this is so sick!!!\",\"entity_id\":824612741,\"track_timestamp_s\":120}}",
    "nonce": "0xaf77c4be2e5f2de8e248ba7188baddf541c048e5e823951fddbf40ac90d8fcf5",
    "signature": "0x7b0e0a962479e2e566ca730f94902516e5da2a46b1d34d2fb3e300758479f6b67b4cf99778257493503a8f1479c7add77f751221c85610b4b2f604aaab73105e1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}