Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13325ab0772c002d3a2f6baae8b162b739ecf1780e51ffa27ac681c638e4efd8' 
  AND token = '1jPwztPObFi9el8/rp6Ahj3seFNj8GoSBhSv/v4R9lA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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