Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '343acb5f89e5684d0fec253a801e69a407f7a3be469f33969b47e249eb4bee2c' 
  AND token = 'eWaDjs73rgintxi4qaor/WX8BdJHVmsEP0dy4m/Ti/o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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