Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '9fcd324e8e5321454e4a1c7c430974823ee0d8a96ab79237e6e0706e02e281e0' 
  AND token = 'Pd7CI13XETU4WTi5VZJPC3c5rkq+11XspSNnZLaCJlM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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