{
  "manageEntity": {
    "action": "Create",
    "entityId": "2081156644",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"bouncy\",\"entity_id\":1894740796,\"track_timestamp_s\":5}}",
    "nonce": "0x85e34ba0fd34e07ba5cad35f004186e1d105996e5e1926c09680b8915d39e380",
    "signature": "0xaa0d7e7524e8cb5dc8b5539f7eb8fa68668c727db5fe8100cd49acbc4c56f4b94bf776129bb8742d9065e713a9647a7bd94ed15adb102e1b920eb984a0660ef31b",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}