Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e0b7c098718eefb5947b201cf2f526ef4ba62b6e79123b0e579044ed8a314e91' 
  AND token = 'Pz6+z9+nXtvUCGuQ06L8faXGi/JQ7D+g83v8E5qRink=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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