Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c5007719a36535649bd9a82c663c8dca759007d9e83ad98c84537c57c9574d32' 
  AND token = 'xGXbnpchaPV5DgMW3sMP5jbFQ3hRM17IG9KFrb2PcnU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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