Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11415787c63fdb8ac066b4849ec7e7f02e1aa6d698ebf596663557ca1c1b94d1' 
  AND token = 'w54y/w6kJkfJMMrAN4vGIMtEwHoD2QqFQZw6sBm1YRA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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