Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05fd591e60220b0a1f7a0bdd90520e8ceaa45638f1ddbb895f05d598a757ecf7' 
  AND token = 'zwXkuwPtL/7rVm53OEUsRhuB9bnYnr7VGvjWucczzO4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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