Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '15adb86481fc779eb1781a3a10b3eef56e24c40a7d5375019b3b207f35c6206e' 
  AND token = 'kqHFXXukUxEqiHKig7Fomot5+41GrknDGpaKWJ/QbyY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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