{
  "manageEntity": {
    "action": "Create",
    "entityId": "51225854",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"ANTHEM TYPE CHUNEEEE\",\"entity_id\":212896575,\"track_timestamp_s\":15}}",
    "nonce": "0x7d5e0218b9e25f20b0dd5a8b0662ac2d9f1c7568da1a163f6476599b6d4f29ac",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}