Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f7ed24f0eb5787ba14526e819df86805754bba4a4ea67641e1b9d278103aef61' 
  AND token = '0V3jnbBMdAVGiaeD75TmNL8dd6vbZm5NHiUYD9ogh5U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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