Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'debeda3f4a6a6529683246d774f8baa7a036289e318c930fffb9cb8e915fbec4' 
  AND token = 'ZfCPAAWqlWDdv/x6cAat7hsPS5aL4ltV0taZNXZUcPU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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