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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d4a5f860b594c467b9457c2762d277b954db04748a37fbd11a75f46b6341a0a' 
  AND token = 'H3Uvlnpm7aXAEal+5Rj2T4iqrBKNRIgKYlJXDJkl7nQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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