{
  "manageEntity": {
    "action": "Create",
    "entityId": "2130448448",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"sounds great! amazing atmosphere 👊⚡️\",\"entity_id\":25351336,\"track_timestamp_s\":79}}",
    "nonce": "0xc16dfb75ccb23818d6ff59aebb07da4cf4eadc0e58bd32e9d422d553f841cf11",
    "signature": "0xd51b8a717a61d55469bcda043410ae41d8a2308f1c130973400ef4ebff81ed7c3e7bcf631c8df1226c7220d8bf584ef723d6f4c3742926d4d60dc723e37094331c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}