{
  "manageEntity": {
    "action": "Create",
    "entityId": "1456611021",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"This really stood out to me.  \\nPart of the current HIDDEN GEMS Φ selection.\\nSelection evolves over time.\",\"entity_id\":1161905563}}",
    "nonce": "0x49b71434ffe563318c277e52b920b8d5dff0e4a46a8b0ebe65fee2b3088da8da",
    "signature": "0x3bf5a22bcffcf1077afbdcd5a0b31efd8577ebb59750279137a384bac5e9c6d931c5e7c730c2329f6a43f39a99de6acf5796a1c3cda0f0696245ff3793dc42b91b",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}