Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0d305a9f512e9367631878aa1c82aed7ae89db36f13dc7b87a5d12afff1698be' 
  AND token = 'X+0KnK/fMRs1Uz8mF52YQdnk2ojyl/+qv5qTSdW2YVQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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