{
  "manageEntity": {
    "action": "Create",
    "entityId": "1526335050",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Your vocal layering is clean \",\"entity_id\":2129034871,\"track_timestamp_s\":306}}",
    "nonce": "0x9a80b1bfb80c3e6ac59fdc26b31b5eec3b1a767a2391d437200bcebbb9e61086",
    "signature": "0x22d2eb6d5fc721c9ce2a28794b707bc4c404ec135cec98b166f0fde7e84ee29c62387fcca78d8339f618545bdd90c14079b759c7871a62ac115311774167f2c91c",
    "signer": "0xB63c8A7B935b55823f383e8f19B6207FB6b31168",
    "userId": "330374208"
  }
}