Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2f053a51ebc06b82530ef3e141c1716c89ca1f5e03bf3a1e5daad6bec585be50' 
  AND token = 'eL/+JTeBQbWUGtfiwzwGvtlibcYr5BUKWg6KuKQdDEc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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