Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1907984b5aa0ac98d3d5c670106baa1f79afb73c9eee0cbcd074249730bc7504' 
  AND token = 'UM0CqJt8/JOnS8NuYQArkVuhxUsqn1Xu+02MnefPcEs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00089

JSON explain

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