{
  "manageEntity": {
    "action": "Create",
    "entityId": "2107517798",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Nice\",\"entity_id\":1184305095,\"track_timestamp_s\":12}}",
    "nonce": "0xd7b30e05171cfc75a6edfddb05dc3c9f742e2f902e707ce830cc99a98bf9b1c9",
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    "signer": "0x0e08C058dE1787206F03B99840c282498259E9C4",
    "userId": "589495545"
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}