Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '48fc5bb62166eba64dafe811a9d6b9f672c6a4e3aedd430b219a23040557b715' 
  AND token = 'AaYdBVsPV6Ny0zXU+I8J8SSgDnG67V8ZU5wLZjy72SA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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