Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9680adfc1fef8e7fb34b73c20b992fe9a2c66f847237fb41f81655e06ba16a4a' 
  AND token = 'ebW6k2j9u4UIXJJPq2quvfx0yRiFaYlZc6p/0Tjjovs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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