Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1303d938113bf550f9d5a03ce231ae5557e70cb5aebfa26df61a609a6c24639a' 
  AND token = 'tzPAiLPct1mSI6bILaVgJJ5J6cURH7F8pu/K5GI2pZE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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