Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62324fb4a0f6c9f11cb81c4b74981b84ffaca6b6d9e8dc01e9726fa09ac95814' 
  AND token = 'YY/gvKhlVFOWzWxKr872ATNd5XeC0TVoozlQ/X9N9Oo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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