Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09d7c4bea3c8a8bf3ce0b61ce73e171fe121771d59c27b4eb757b8b1b56ee01f' 
  AND token = '/a1nmmKKmuP3w4r6E5D6UIa0RWaFz9uniB7cTKcceG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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