{
  "manageEntity": {
    "action": "Create",
    "entityId": "1512889407",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"😏\",\"entity_id\":1898887860}}",
    "nonce": "0x95a2658f1933dba58a2c0a152c435a1d5fe6d7983302ca7f952e80f5cc548791",
    "signature": "0x0cdf2f68ddce7aec8d2113b569b3908cc19ea5a135f7dedc6da06bba30415a124cb377cc8bf358cd726552372f5a7935151c0e1b992d46607ccd023ecbfce68e1c",
    "signer": "0x15B9643abE09bd37C52a5BD1dCF938B05b06cBFB",
    "userId": "370091516"
  }
}