Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ceaf294a444ffdd16ce44007dfbd872f83c06eb400eba8796dbe544f338a5fda' 
  AND token = '63qe2n1heGyry30JVxZoagyv5DJ4EA5DhyMiVL0ZwoY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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