Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '286adb2e7300f7e970062eb3196f539c8480e72332943d53d6f27c71c92a9a12' 
  AND token = '1Ir1lV9V/LI0yS2CLrqC2tEbw2IL/bB50h+AOkoCSvk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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