Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa70de55d03d03626058424194ae2e99c0ff544e0106d17d5899d9a33c0364b8' 
  AND token = 'dMLVQXeFQ06M2NtP7cuPqVvP7T7jACjGf/wNGUgDyA4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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