Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '480cdb2c33f6573ef88e66c3d00dbd93a3b6fe69e347fa547474ed3ab8de0aaa' 
  AND token = '59Agnvq50Sgy3sJWtrnk1WdjthI/hG2iqVeAKIqRUQQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}