Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7aa407297662cb33bda0bc1a293c06ca7d02e64cc3867e9f57ffbfdca8a54fbe' 
  AND token = 't97pWvEDuOorOFHoVjt20xvWalqGtg/hyvvy2inifsE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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