Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '48b0f42f7901ee8e938ce6e936e432f51d7f022ad3a6353f8b72ed6021f19277' 
  AND token = 'bQfnjg8pHQNNGrQ7RAMrR1Jyd5cIP7bb3glB2RpcIpA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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