{
  "manageEntity": {
    "action": "Create",
    "entityId": "1814272612",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"\",\"entity_id\":44351511,\"track_timestamp_s\":20}}",
    "nonce": "0xd31c1e8504a7d14b0c6941bf67a1bd3c73f520cbe69083d83d4ad96724c0c7db",
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    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
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}