Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fd56b9fb0fbb7dd96f41c1ba45da374628b11209450776b4450833ab30fb4fd2' 
  AND token = 'Oc1WfuaQ/TO5S0Ea+QwyzWb0gzVj9FfLYfILd+hwmd8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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