{
  "manageEntity": {
    "action": "Create",
    "entityId": "1521793820",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Love the vibes on this Gee Cee.  Reminds me of 80's funk and dance.\",\"entity_id\":1199968326,\"track_timestamp_s\":108}}",
    "nonce": "0xee4b75b3a0c0d3964b548323f4b4f3a6d116c09e5dc11c61f5fcf0441ffe137f",
    "signature": "0xf00e1a288c7bf0dae8022007e2cd8d2e9c21e5433d1d0770c8a663c0018099641aebb51b343f0abff0d4d3e6c75696324adf5691a82f56b606d2d0944f8c7b091b",
    "signer": "0x1aD24cf577BE8D231BABeA33920B3267d9c60803",
    "userId": "630673992"
  }
}