Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d022f18cd40e368940f141274ac1e354eed4ef13134111107679d9ffe8fddd1' 
  AND token = 'lsLKMYNybS1KdFNf9AYkeioGrT94I9vZhrIyhen74ng=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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