{
  "manageEntity": {
    "action": "Create",
    "entityId": "381279543",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Genial\",\"entity_id\":1184305095,\"track_timestamp_s\":21}}",
    "nonce": "0xd26e5a0d542d69ee6e1649b455479f041f831238a1b76ec7e58c496cc603a7aa",
    "signature": "0x1dd2c8d06d2db3314ec298e0c7f32ab4e00434874b8efdd6c667667ed5a5097271aa41fc6045e201b8ffa5179ddb0a82d2e4fdcce3a730c83e83db6cc7c925821c",
    "signer": "0xca797dA7dCB793742623d55EA81fb92A9566B550",
    "userId": "363062902"
  }
}