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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04bd72ce4d262629c7212de6f88534761fd3e017764a27cce09623f1e325d887' 
  AND token = 'pFIGjdaYBX8Mir9jJg1oh4kZ7CB6Gx1KgNaOuDSRHZg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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