Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7f1f69bfac2bd15f57d360c6cff1f849440c478fd312b722dc0a9e5b0b46efe0' 
  AND token = 'aWk9zk1FAhve4rSrloTmWzetryTMtHDwJHK0JDb9X6U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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