Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c18bb8db47176ad4e028c70d8f1870c262c9b3f0eb9b757285b472ec656495ab' 
  AND token = 'LNmJNqphRe8pb1nsw5DphFluPQG2pRQOGp+IyH1d/F0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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