Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08dd9472e30881795cb7cb24ec2b853e18f8d51ca739d9ac9bbd8e62f0e373ec' 
  AND token = 'Hm8WB5eN6ZV+qMNQXr8Zd7uAJIMX/dbMJgMg1OXQKDA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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