Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4f5f57fdcb1a3ac0b908b41e4aa66c95daf597fc12c617e9e6bd05151e2c544c' 
  AND token = 'aqLQlFJUSIrVkcGCW0ZsvirbtL6U9YTBMBaFWpQorug=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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