Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3c2ec4a848967d2a20bdaafae9633290e22c7ab448198498e85716a119a1e933' 
  AND token = 'dwyA8LNs9tAgr9Yf0f6yjkNqX1I2ZrpqEEetLSOOzAI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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