Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1c33c35c236c01919872c52c47f3f85f9abaceb2c6ddc11f9c505627e2eef931' 
  AND token = 'k+4RT7TYwlIKaBTiVKpFp25sdWotL4/iw4c8M3EVtfs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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