Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '072c2bf84303e841f6d2cf007710b0f67b37162347daaa5aa9f71700da1ad874' 
  AND token = 'moWoKlI6/0oTDCQmstPnp4M0fof/p1dknDnI5WTLM8E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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