Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e0401e1f677922e0bfd690a0ecbd3cd6822b95dd102081cee7133c00e7e6b3ba' 
  AND token = '2Ik/80zeaMOqmDKnFekozxF6F7aIF3B/87fyiq4ci5g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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