Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fae1b2a8294c290c003660e8bf005832dc4d4e71e9cc44a2843c0e86ee49f58a' 
  AND token = 'VTMIrJl11/4cLSG14zOI354jid2ALYB0OVV9us7Lp6k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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