Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0a1e10fb60ee1049f8dcd44ee111d623f39cf2ff7967e76ad61ba0d51124e50c' 
  AND token = 'y1OjGos0aiNX7j+3KOYTWG0uaG9ShXuC9hpEUin41u4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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