Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'edd30e3801b7eb276764dc7606cf5f719a1f517a68d7cb80ee33064154274a75' 
  AND token = '67DiKQVp4QFnh0C2T2psEgH8jXMXIIzS5yQwgiuxc7o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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