{
  "manageEntity": {
    "action": "Create",
    "entityId": "1027613175",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Nice\",\"entity_id\":1922751444,\"track_timestamp_s\":1595}}",
    "nonce": "0x3043f736c15557aa3a16dcab830b0918f2544ea88462b03b520a3f9bd03b7143",
    "signature": "0x5688dd6dd1d7a9a0e96852fbc57bde06acb2fa2dc1f8c6e576fa9836d0b0c9ee41ed62065dbf18f9e6c5b214417ef133af718d3863a3076e7c0c6b44d59afb0b1c",
    "signer": "0x6409f2D99228Fee0405Ccf5572802befaCd890f2",
    "userId": "43754840"
  }
}