Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '73a353233be7938cd1700b8058cdc4da42f35f70359cd5e0272099475d5d75c5' 
  AND token = '/dia89oDf3yTdH8r9kgr2w5knRBzKzeUW8O+Y2bz1aU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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