Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5e37cb4b2435555d8b9a91cfebfcd953d5a7f47369efa00ae45de1deb1be602b' 
  AND token = '+ogceu8L2xDLOBJlWO0n2+VrxNDS9DadunVcgv0XjiY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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