{
  "manageEntity": {
    "action": "Create",
    "entityId": "52688685",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"ayyyy!\",\"entity_id\":588404307,\"track_timestamp_s\":27}}",
    "nonce": "0x74a05276d4afaf3bf62a6a548a94968196e7623b4f06dcfe482749dd1de08075",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}