Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '69307ea757aca1f07785faf68f5fe866d32925aafa5280037e3f571aa105045a' 
  AND token = 'zS73L3F2fYn6YEN4TNOipz0j2V1fXU0B5am3asDJddY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00071

JSON explain

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