Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4a190ae4fdfbac0a7855e13b88e18ec195d1778dd1e229ad31741b62df37b44b' 
  AND token = 'BB0wOd1bkR81ghgMvA4x0bkKlobjv4lj44eghCPVQ8k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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