Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9f914c2352ec8dc3862955610dca16dd813dd538ac68c865c163c59460fb2ea4' 
  AND token = 'g1Zo8Tb46EUXPuGerwoIjOUbNYwgovsrxbaCFsduYVY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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