Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9970857f2e6b13a635500f564a59ddc2bd613b02f246f36b9ba29384ce5e1530' 
  AND token = 'AXGiYesI2vw2JBRJW7mEoos6sx1z00Idglhy34Z2Ecg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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