Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'da9493db67e590ccb6bde97692fbff40c2901aa508d76765dd906d076a9aeea0' 
  AND token = 'IK0nT8rhDIV4DchgpUekXfiTWPJXB3ttGHzrxei7uzs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00056

JSON explain

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