Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e180185178f7f55926b430af26a993ff8b16f9c6e67352eaa61ad70fe9ac07d1' 
  AND token = 'CZGg1wxg1aa6pl5taW+/5jacpSso9gFQDJuQP4ISV4E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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