Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bed6052110ea10b7abe9c99209298e09b96cf733af9e7cfc27917e3febbc0f94' 
  AND token = 'F60Co4LNILqqxnuZC+v65kGN7xA5W0jySg9bu93hNDs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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