Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '88c38d54cbdaab7f8fd31c2a689b392e610095c31bc831b6807d9034bbf81cac' 
  AND token = '7SfnbM/WJdq8Yepm33OQ4DjTp5ojNIwjzaU37r9Imbg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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