Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '022cd56fa5c081fad764b636b28d078db5a61360db17d89028ebd09e149b1ad2' 
  AND token = 'OzNuCoQu5GZufkdpttsGb132b2asxf64In/LyIiO2do=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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