Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cc0876fa619d62e7200cdbe9bdd58fc9394db349366dc7a8c2eef68b3e9f9d59' 
  AND token = 'reg7cMGB5szkH7Dao3Yr5fRKxsm6BKVBs+jwOoMvB0Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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