Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5113a9fe7eda178f9e214bcaa3e79438420d1892e121b20374b86a0e85570089' 
  AND token = 'z4GzZuKV8nmNIkCIQPkSkTYSwlnSptV1CK3TB6DuoOE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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