{
  "manageEntity": {
    "action": "Create",
    "entityId": "236429742",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"nice\",\"entity_id\":1086578,\"track_timestamp_s\":61}}",
    "nonce": "0xb9a0006d53cf55bed47a5a2b8b1d5a976bdeef8b032e15ba5609b56e35982360",
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    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
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}