Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9241206fe5df7e4419db8ea47457cd371e635f7df88f4bc80bbe51809e2f2c24' 
  AND token = 'ep/5IQ2dWtEZh8JePD3Y97MNCPF78Fq8guD0w71ZK6Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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