Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e569e32157057f48ab8a13b8cd1d5407c2490d6733f19b6a01ea134121384646' 
  AND token = 'nYK/EcsUKbAr+mQoJ3oitEIJ5GjtBS0mbf4Bewdfqdo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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