Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aec59eba22b89f214d720dcb9fe13be5c01756d06663f053fe001ad25cd1dd66' 
  AND token = '7HJ0b/d+E+V99J/CKjehCFXneUKB7Tm7xxmSXK2fFF0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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