Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd6f9cbee9fbf1c1ee076efe6564ab5add3785d8712df84266c755022d46e5221' 
  AND token = 'qNfgpRYVqTaud9P8v4RhIWMAQ7eoTI+LVo/f+/Tztxo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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