Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d09ff1e8cd68cfd822c242742d6bde0b2bc6d5f55970ae2a545d8f74ea3bcb8' 
  AND token = '9TJUWFwjqeyGuxasJT+bjkr6201qSM5+csfnPtFeqzw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00068

JSON explain

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