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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '322863a196b19b4439e225d96dd2b32250cd73b621a83b6aa80b03e666d2b971' 
  AND token = 'dzH2a3M/wB8aB/B6oX9bd8t0q6qc6Tv6dqLiOrDsLI0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}