Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32c70e4495473e556475bf6d57658b74b3d3333ab53794dfb9eedd26d77f26da' 
  AND token = 'CxGyrfa4ssPgIZC2wLwhXR92LjDfFvj4/OpFm+4Gurc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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