Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64845ddf74bf74f5dc37a5c382acdd3b0e62b107a894ab06ac0d87fd9c385793' 
  AND token = 'BllqZiHgiKYtSDr8KXxpM65la4V8AsDgmOEXuCEZSyY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00053

JSON explain

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