Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'a10f629756bd14375833386fc2230149eb00c2f059b747428c650a380530e624' 
  AND token = 'FrRqNdlQrBuGquMorHrz3IF5hQEbexJXb8oA1G67UTA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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