{
  "manageEntity": {
    "action": "Create",
    "entityId": "1007162973",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"HYPEEE\",\"entity_id\":1490110178,\"track_timestamp_s\":48}}",
    "nonce": "0x442fd3fe8275f27bcd33e18c602e0a0eb319c833682707f271acb12cee8e14e8",
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    "signer": "0x4e636627B2C38e64C8D3aF5889767393B4fE6C1A",
    "userId": "181"
  }
}