Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1ee49e60392dd1318340351c758d22dfe3cca3d86d3883cf7d5774ff62143380' 
  AND token = 'Y4KCrNSOSH3hlg2wzOBRKkCt34d/iDiaR8IH0wkUOV0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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