Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9f1409c5f3446565bfcc855c1e602fd978ae879e899207c90bb1950e416e5a3f' 
  AND token = 'mSPeshb8GyQdSo1q/7tq9plpYZM8QZu7fJN9wpyYvAI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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