Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0b0a4ab8536d1d3f245ca4a55e07083fa76de563c7c9b5a04428dacbf28e60c0' 
  AND token = '0ixczSIsVhu0NAUyfiSNlWTAhT6LrScItDGlax1VFes=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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