Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5de2774cf36e2b5d4269887406c68db000012609c2d674a0fbabbf60c3910bb7' 
  AND token = 'iH0oQ8GkCGPg1hueXZQ2tw5nMBp70fGY6ROTL4kkU3E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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