Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f3fc2d15bb7252fd15b72244fb727775814bc033396640ffc90d0ff5ca3fedb7' 
  AND token = 'XtMJaFj4INCnCKtolcwm1pJtf7GolcrN++FrsFAAa2g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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