Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '898e86d2324d2b56ce64c8db0d3a2dcdb8adc25b6b9800432c12ef8feea7b009' 
  AND token = 'QtU5ntO8+4ZpeR2K224YSkJ8LRBt1sjWg3tJzj0StA4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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