Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '044f5f5e52a75e5ffba01f31ab5973a8f178d43581ef262b5eb2f84ba9dcef93' 
  AND token = 'wv87kSt7j4vBnoKXhbN5OnUXJM4nyaLCikLAU1a6DTU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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