Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11007e1ef0f352333ef4f725d7bfd3c2678eb1bba66c1c164b25e78c2011119a' 
  AND token = 'H36Xpyx0ll/uQ2GPN6GIvW/HB+yPt0UlWnYkg28F19Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00070

JSON explain

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